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Question 617217: Find the number of ways of seating five men and five women alternately in a row, beginning with a woman.
Please Help Thanks
Click here to see answer by stanbon(57407)

Question 617217: Find the number of ways of seating five men and five women alternately in a row, beginning with a woman.
Please Help Thanks
Click here to see answer by ryuzaki.sultan(1)

Question 617199: In testing a new drug, researchers found that 1% of all patients using it will have a mild side effect. A random sample of 12 patients using the drug is selected . Find the probability that:
A. Exactly one will have this mild side effect
B. at least one will have this mild effect.
N= 12
P= .01
Click here to see answer by stanbon(57407)

Question 617219: Please help with problem:
Lisa has 9 rings in her jewelry box. Five are gold and four are silver. If she randomly selects 3 rings to wear to a pary, find each probability:
a) P(2 silver or 2 gold)
b) P( at least 1 silver)
Click here to see answer by stanbon(57407)

Question 617231: Please help:
The tiles A,B,G,I,M,R, and S of a word game are placed face down on a table. If two tiles are randomly chosen, one at a time. Find the probability:
a)P(R,then S) no replacement occurs
b)P(2 consonants) if replacement occurs
c)P(2 vowels) if no replacemnet occurs
Click here to see answer by sudhanshu_kmr(1152)

Question 617268: how many ways can seven different types of soaps be displayed on s shelf in a grocery store?
Click here to see answer by nerdybill(6963)

Question 617265: A college freshman must take mathematics, an english and a social science subjects.if he may select 3 mathematics subjects, and any of 4 english subjects and any of 5 social science subjects, in how many ways can he arrange his program?
Click here to see answer by stanbon(57407)

Question 617264: how many 3-digit numbers with no repeated digits using 4,5,6,7,8 can be less than 520?
Click here to see answer by stanbon(57407)

Question 617263: The captain of a basketball team assign himself to the 4th place in the shooting order. in how many ways can he assign the remaining to his 8 teammates, if just 3 men are considered eligible for the first position?
Click here to see answer by stanbon(57407)

Question 617241: 1 out of 5 of a certain type of car has tire defects. At a new car lot, there are 12 of these cars. Calculate the probability that the given number of cars have the defects.
a) 1
b) 3
*Thank you so much! Maybe I can get a tutor from here too. That would be nice.
Click here to see answer by stanbon(57407)

Question 617228: Please help Thank you
Ebony has 4 male kittens and 7 female kittens. She picks up 2 kittens to give to a friend. Find the probability that she chooses 2 female kittens.

Click here to see answer by stanbon(57407)

Question 442257: What are the big corporations doing with their wealth? One way to answer this question is to examine profits as percentage of assets. A random sample of 50 Fortune 500 companies gave the following information.
Profit as percentage
of assets 8.6-12.5 12.6-16.5 16.6-20.5 20.6-24.5 24.6-28.5
Number of
companies 14 16 7 6 7
Estimate the sample mean, sample variance, and sample standard deviation for profit as percentage of assets. (Round your answers to one decimal place.) x = % of assets
s2 =
s = % of assets

Click here to see answer by paulgrasso(1)

Question 617261: How many 3-digit numbers with no repeated digits using 4,5,6,7,8 can be less than 520?
Click here to see answer by KMST(1874)

Question 617339: It's a True or False question.
Since there is more variability in sample means computed from smaller samples, we have more confidence in the resulting estimates and are less apt to reject the null hypothesis.
My Answer is False. But I'd appreciate if you can confirm my answer to be correct.
Thank You.
Click here to see answer by stanbon(57407)

Question 617288: How do I Construct the 95% and 99 % confidence intervals for the population proportion P using the sample statistic below. Which interval is wider? p=0.743, q= 0.257, n=4378
Click here to see answer by stanbon(57407)

Question 617393: a two-tailed test is conducted at the 5% significance level. What is the P-value required to reject the null hypothesis?

0.50?
Click here to see answer by jim_thompson5910(28598)

Question 617401: In a bag are 4 yellow and 8 blue marbles. 3 are selected at random without replacement. What is the probability that all 3 are yellow or all 3 are blue?
Click here to see answer by jim_thompson5910(28598)

Question 617407: The campus vets club is having a raffle and is selling 2,300 tickets. If the people on your floor of the dorm bought 621 of those tickets, what is the probability that someone on your floor will hold the winning ticket?
Click here to see answer by stanbon(57407)

Question 617420: In a bag are 4 green, 8 blue, and 5 red marbles. 2 are selected at random without replacement what are the odds that both are red?
Click here to see answer by scott8148(6628)

Question 617465: Its a True or False question.
The test statistics for a problem involving a small sample of under 30 and the population standard deviation is unknown is the t distribution.

Click here to see answer by jim_thompson5910(28598)

Question 617237: Please help me solve this :
There are 3 miniature chocolate bars and 5 butter cups in a candy dish. Judy chooses 2 of them at random, one after another. Assume that she eats the first one before choosing a second. What is the probality that she chooses 2 miniature chocolate bars?
Click here to see answer by KMST(1874)

Question 617493: So let's say we do calculate standard scores for batting averages, and the first player has a standard score of 1.85 wereas the other player has a score of 2.86. What do those scores tell you about the two players?

Click here to see answer by stanbon(57407)

Question 617487: From past records it is known that the average like of a battery used in a digital clock is 305 days. The battery life is normally distributed. The battery was recently modified to last longer. A sample of 20 of the modified batteries was tested. It was discovered that the mean life was 311 days and the sample deviation was 12 days. We want to test at the 0.05 level of significance whether the modification increase the life of the battery. What is our decision rule.
A) Do not reject the null hypothesis if computed t is 1.96 or greater.
B) Reject the null hypothesis if computed t is less that 1.96
C) Do not reject the null hypothesis if computed t is 1.729 or greater.
D) None of the above.
Click here to see answer by stanbon(57407)

Question 617591: over a period of 3and 1/2, 11/20 inch of wear was worn on a tire. what is the average wear per year
Click here to see answer by Alan3354(30993)

Question 617601: The average daily of 500 branch office was 150 thousand and the standard deviation is Rs. 15thousand. assuming the distribution to be normal indicate how many branches have sales between
Click here to see answer by stanbon(57407)

Question 617634: Go to the coefficients readout. The constant is the intercept. Under that is the ACT and that is the slope. Using the straight line formula of Y = mx + b, which you will find on page 313, you will now predict some future GPA scores: In the formula (m) is the slope; (x) is the variable that you are looking to use as a predictor; and (b) is the intercept. Predict GPA from the following ACT scores using the regression equation/straight line formula (show all your work):
1) 20
2) 25
3) 34

Click here to see answer by solver91311(16897)

Question 617666: find the binomial probabilityP(x=5) where n=14 and p=0.30 B). setup without solving the binomial probability p(x is at most 5)using probability notation C. how would you find normal approximation to the binomial probability (x=5) in part A please show how you would calculate mean and standard deviation in the form of normal approximation
Click here to see answer by solver91311(16897)

Question 617668: you are walking along a beach in s.c. where there are equal numbers of clam shells, scallop shells and mussel shells.... you pick up three at random.
How many possible outcomes could there be?
what is the probability that the first of the three will be a mussel shell?
I need to know how to do this?
Click here to see answer by scott8148(6628)

Question 617678: I asked a question a few weeks ago: How many ways can 4 people be chosen from a group of 9. permutation or combination?
Please help. Thank you very much
Click here to see answer by solver91311(16897)

Question 617690: what is the probability of tossing tails with a fair coin and tossing a number less than 5 on a fair die?
coin= 1/2 die= 4/6 or 2/3
Click here to see answer by vleith(2825)

Question 617662: Can you please help me in answering the following:
(A) Find the binomial probability P(x = 5), where n = 12 and p = 0.70.
(B) Set up, without solving, the binomial probability P(x is at most 5) using probability notation.
(C) How would you find the normal approximation to the binomial probability P(x = 5) in part A? Please show how you would calculate µ and σ in the formula for the normal approximation to the binomial, and show the final formula you would use without going through all the calculations.
Click here to see answer by stanbon(57407)

Question 617660: Rank the following data in increasing order and find the positions and values of both the 11th percentile and the 71st percentile.
7,5,3 2,9,6,4,3,8,5,5,8
Click here to see answer by stanbon(57407)

Question 617683: In the Department of Education at UR University, student records suggest that the population of students spends an average of 5.5 hours per week playing organized sports. The population’s standard deviation is 2.2 hours per week. Based on a sample of 121 students, Healthy Lifestyles Incorporated (HLI) would like to apply the central limit theorem to make various estimates.
Calculate that the probability that the sample mean will be between 5.3 and 5.7 hours.
Click here to see answer by stanbon(57407)

Question 617726: at one school, the average amount of time that tenth-graders spend watching tv each week is 18.4 hours. The principal introduces a campaign to encourage the students to watch less tv. One year later, the principal wants to perform a hypothesis test to determine whether the average amount of time spent watching tv per week has decreased. Formulate the null and alternative hypotheses for the study described.
Click here to see answer by stanbon(57407)

Question 617721: a number cube is rolled and the answer is recorded, a second cube is rolled what is the probability that the sum of both rolls combined is 4?
Click here to see answer by stanbon(57407)

Question 617681: The Oil Price Information Center of greater Houston reports the mean price per gallon of regular gasoline is $3.00 with a population standard deviation of $0.18. Assume a random sample of 40 gasoline stations is selected and their mean cost for regular gas is computed.
a. What is the standard error of mean in this experiment?
b. What is the probability that the sample mean is between $2.98 and $3.02?
c. What is the probability that the difference between the sample mean and the population mean is leass than .01?
d. What is the likelihood the sample mean is greater than $3.08?
Click here to see answer by stanbon(57407)

Question 617669: a set of data is normally distributed with a mean of 1000 and a standard deviation of 100 what would be standard score for a score of 900 what percent of scores is between 1000 and 900 what would be percentile rank for a score of 900
Click here to see answer by Theo(3464)

Question 617773: Use Pascal triangle & the binomial Theorem to expand: (2x-3y)^4
Click here to see answer by Alan3354(30993)

Question 617869: 90%of x =9050000 find x
Click here to see answer by unlockmath(1603)

Question 617967: give a mean of 43.8 and a standard deviation of 8.7. What is the z- score of the value of 40.
Click here to see answer by Theo(3464)

Question 617919: A box contains four quarters. Exactly two of the quarters have the American eagle on the back. Suppose you draw two quarters with replacement at random from the box.
A. What is the probability that both have the American Eagle on the back?
B. What is the probability that neither has the American Eagle on the back?
C. What is the probability that at least one has the American eagle on the back?
(I think you have to use the equation but I am not sure how to use it)
Click here to see answer by Theo(3464)

Question 618086: I am stuck on this question:
If a student must take six tests:
T1, T2, T3, T4, T5, T6.
In how many ways can the student take the tests if:
a.) T2 must be taken immediately after T1?
b.) T1 and T2 cannot be taken immediately after one another?
I first tried coming up with all of the options for T1 followed by T2, but it will take forever!!:
1,2,3,4,5,6
1,2,3,4,6,5
1,2,3,6,4,5
1,2,3,6,5,4
1,2,3,5,6,4
1,2,3,5,4,6
1,2,4,3,5,6
1,2,4,3,6,5
1,2,4,5,3,6
1,2,4,5,6,3
1,2,4,6,3,5
1,2,4,6,5,3
Click here to see answer by scott8148(6628)

Question 618156: A bag contains 4 red tiles, 3 blue tiles, 2 green tiles, and 1 yellow tile. What is the probability of drawing a blue tile and then another blue tile if the first tile is not returned to the bag?
Click here to see answer by stanbon(57407)

Question 618181: A set of data is normally distributed with a mean of 1000 and standard deviation of 100.
· What would be the standard score for a score of 1200?
· What percentage of scores is between 1000 and 1200?
· What would be the percentile rank for a score of 1200?
Click here to see answer by stanbon(57407)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285