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Question 490692: Mary purchased a package of 18 different plants, but she only needed 15 plants for planting. In how many ways can she select the 15 plants from the package to be planted?
How do I do this? Could I have some help?
Click here to see answer by Alan3354(30993)

Question 490903: Find the number of different arrangements that can be made out of the letters of the word „TRIANGLE‟ if the vowels are to come together.
Click here to see answer by stanbon(57347)

Question 490910: Evaluate:
C
11 6
Answers"
66
120
24
462
Click here to see answer by stanbon(57347)

Question 490995: given the following information

__________<5yrs____>5yrs

--satisfied------75---------50

unsatisfied-----100--------25
how do I figure out if job satisfaction is independent of experience?
Click here to see answer by ccs2011(207)

Question 490945: According to a medical study, 24% of all patients with high cholesterol have adverse side effects from a certain kind of medication. Consider a random sample of 250 patients. What is the probability that at most 46 patients have adverse side effects from the medication?
Click here to see answer by stanbon(57347)

Question 490913: Given that P(A) - o.5, P(B) = 0.3, and P)A and B)= 0.10, determine (A/B)?
answers:
0.125
0.20
0.33
0.50
Click here to see answer by stanbon(57347)

Question 490907: A bag contains 5 red marbles and 6 white marbles. Find the number of ways of selecting 4 marbles such that 2 are red and 2 are white.
Click here to see answer by stanbon(57347)

Question 490901: How many different two digit positive integers can be formed from the
digits:0, 1, 2, 3, 4, 5, 6, 7, 8, 9. (i) When repetition is not allowed,
(ii) When repetition is allowed.
Click here to see answer by stanbon(57347)

Question 490897: In how many ways can 7 women and 3 men be seated in a row if
the 3 men must always sit next to each other?
Click here to see answer by stanbon(57347)

Question 490833: I am really struggling with this problem...please help...thank you
A confidence interval estimate for the population mean is given to be (47.81, 56.24). If the standard deviation is 16.555 and the sample size is 42, answer each of the following (show all work):

(A) Determine the maximum error of the estimate, E.

(B) Determine the confidence level used for the given confidence interval.

Click here to see answer by stanbon(57347)

Question 491032: An urn contains 4 green marbles, 10 yellow marbles and 6 red marbles. What fraction of the marbles is not red?

Click here to see answer by chessace(471)

Question 491025: A 1-6 number cube is rolled. What is the probability?
The cube is rolled twice. P( 4 and then odd )
Click here to see answer by chessace(471)

Question 491022: a drawer contains six black socks and eight white socks, all identical except in color. what is the least number of socks that a blindfolded person would have to take from the drawer to be sure of selecting at least one pair of matching socks? A.) 2 B.) 3 C.) 4 D.) 5 E.) 7 (please explain your reasoning) * please help me out i tried this problem serval times and could not figure it out thank you
Click here to see answer by chessace(471)

Question 491053: A bag contains 6 purple marbles, 7 azure marbles and 10 orange marbles. What is the chance of drawing an azure marble? If an azure marble is drawn then placed back into the bag, and a second marble is drawn, what is the probability of drawing a purple marble? Give solutions exactly in reduced fraction form, separated by a comma.
Can someone help me with this, please?
Click here to see answer by Edwin McCravy(8909)

Question 491062: A bag contains a total of 20 batteries, of which four are defective. Selecting two at random, without replacement, determine the probability that none of the batteries you select are good.
1. 3/95
2. 3/5
3. 1/5
4. 4/95
Which one should it be? Can I have help, please?
Click here to see answer by Edwin McCravy(8909)

Question 491063: Evaluate: 11C6
1. 66
2. 120
3. 24
4. 462
Is there someone that can help me with this, please? Thank you.

Click here to see answer by MathLover1(6634)

Question 491064: Given that P(A) = 0.5, P(B) = 0.4, and P(A and B) = 0.20, determine P(A|B)
1. 0.40
2. 0.50
3. 0.25
4. 0.20
Which one should it be, because I am stuck?
Click here to see answer by MathLover1(6634)

Question 491066: If P(A or B) = 0.8, P(A) = 0.8 and P(B) = 0.5, determine P(A and B).
1. 0.35
2. 0.50
3. 0.64
4. 0.13
Could I have some help, please?

Click here to see answer by MathLover1(6634)

Question 491187: what is the Probability of rolling an even number on the die? Since a die has 6 numbers with 1 to 6 on each face, there will be just 3 even numbers on it.
Click here to see answer by richard1234(5390)

Question 491017: A sample of size 7 (n = 7) has a mean of M = 9.
One of the sample scores is changed from x = 19 to x = 5. What is the value for the new sample mean?

Click here to see answer by mercy(1)

Question 490801: Based on your experience thus far in this class, what is the probability that you will receive an "A" grade? Explain the factors you have used in arriving at this probability assessment.

Click here to see answer by richard1234(5390)

Question 491599: A federal
report stated that 88% of children under age 18 were
covered by health insurance in 2000. How large a
sample is needed to estimate the true proportion of
covered children with 90% confidence with a
confidence interval 0.05 wide?

Click here to see answer by stanbon(57347)

Question 491674: Suppose you are moving, and have 9 boxes. For this problem, order is not important.
i) find the number of ways of selecting 4 boxes out of 9.
ii) Suppose one box has your wallet. Find the number of ways of selecting 4 boxes, so that the box with your wallet is one of the four. (Hint: how many ways of getting 3 more boxes out of the remaining 8 are there?)
iii) If you select 4 boxes at random, find the probability that your wallet will be in one of these four. Use the results from parts i and ii to answer this problem.
Click here to see answer by stanbon(57347)

Question 491699: 1. Choose the value below that is the Mean (to two decimal places). (Points : 8)
Mean: 4.87
Mean: 15.00
Mean: 12.18
Mean: 6.27

2. Choose the value below that is the Median (to two decimal places). (Points : 8)
Median: 15.17
Median: 12.18
Median: 4.87
Median: 6.27

3. Choose the value below that is the Mode (to two decimal places). (Points : 8)
Mode: 6.27
Mode: 4.87
Mode: 12.18
Mode: 15.17

4. Choose the value below that is the Standard Deviation (to two decimal places). (Points : 8)
Standard Deviation: 1.54
Standard Deviation: 2.07
Standard Deviation: 1.09
Standard Deviation: 3.12

5. Choose the value below that is the Kurtosis (to two decimal places). (Points : 8)
Kurtosis: 1.70
Kurtosis: 0.33
Kurtosis: 12.09
Kurtosis: 2.11

Click here to see answer by stanbon(57347)

Question 491877: Can you have 60% of a class score less than the average score?
Click here to see answer by ccs2011(207)

Question 491984: Translate the written expression into an algebraic expression or equation.
Paula's new MP3 player, n, has 3 times as much memory as her old player, p
Click here to see answer by stanbon(57347)

Question 491986: A person is wearing a bracelet with 11 settings around the bracelet. How many different ways can 12 birthstones be arranged around the bracelet
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Question 491952: How many diagonals are there in a regular polygon of n sides?
Click here to see answer by stanbon(57347)

Question 491951: There are 12 points P1, P2, ..., P12 in the plane, no three of them on the same line.
(a) How many triangles can be formed?
(b) How many of the triangles contain the point P1 as a vertex?
Click here to see answer by stanbon(57347)

Question 491949: A new-born child can be given 1 or 2 names. In how many ways can a child be named if we can choose from 100 names?
Click here to see answer by stanbon(57347)

Question 491948: How many possible outcomes are there when 100 dice are rolled?
Click here to see answer by stanbon(57347)

Question 492148: please help me.
10. Form the converse: If I do not change my car’s oil, then my car will have engine trouble. (Points : 5)
If I change my car’s oil, then my car will not have engine trouble.
If my car does not have engine trouble, then I changed my car’s oil.
If my car does not have engine trouble, then I did not change my car’s oil.
If my car has engine trouble, then I did not change my car’s oil.
If my car has engine trouble, then I changed my car’s oil.

Click here to see answer by Theo(3464)

Question 492164: Identify the more basic function that has been shifted, reflected, stretched, or compressed. g(x)=(-x)^3
Click here to see answer by chessace(471)

Question 492456: I am struggling with this problem...I am getting a headache because I have been working on it forever now...PLEASE HELP AND THANK YOU VERY MUCH
Consider a normal population with µ = 25 and σ = 8.0.SHOW ALL WORK
(A)Calculate the standard score for a value x of 22.
(B)Calculate the standard score for a randomly selected sample of 30 with = 22.
(C)Explain why the standard scores of 22 are different between A and B above.

Click here to see answer by stanbon(57347)

Question 492507: joanne has a roll of ribbon 6 feet long. She needs pieces that are 3/4 feet long . If she cuts the whole, how many pieces can she made ?

Click here to see answer by stanbon(57347)

Question 492311: A confidence interval estimate for the population mean is given to be (45.37, 53.91). If the standard deviation is 12.604 and the sample size is 58, answer each of the following (show all work):
(A) Determine the maximum error of the estimate, E.
(B) Determine the confidence level used for the given confidence interval.

Click here to see answer by stanbon(57347)

Question 492540: if you roll two number cubes. about how many times can you expect the product of the numbers to be a multiple of 5?
Click here to see answer by stanbon(57347)

Question 492576: A certain type of home security system is triggered in 96% of burglaries. If 6 homes equipped with such a system experience a burglary, find the probability that at least 4 alarms are triggered. Round your answer to four decimal places.
Click here to see answer by stanbon(57347)

Question 492307: A 90% confidence interval estimate for a population mean was computed to be (49.3, 67.9). Determine the mean of the sample, which was used to determine the interval estimate (show all work).
Click here to see answer by stanbon(57347)

Question 492579: A magazine article cited the numbers on household income in Berea, KY as given by the U.S. Census Bureau. Was a sample or the population used?
Will someone help me please? I don't understand.
Click here to see answer by stanbon(57347)

Question 492606: March is a month
of variable weather in the Northeast. The chart below
records the actual high and low temperatures for a
selection of days in March from the weather report for
Pittsburgh, Pennsylvania. At the 0.01 level of significance,
is there sufficient evidence to conclude that there is more
than a 10 difference between average highs and lows?

Click here to see answer by richard1234(5390)

Question 492305: By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.92 seconds.
Answer each of the following (show all work):
(A) How many measurements should be made in order to be 90% certain that the maximum error of estimation will not exceed 2.0 seconds?
(B) What sample size is required for a maximum error of 1.5 seconds?

Click here to see answer by stanbon(57347)

Question 492609: Ebony has 4 male and 7 female kittens. She picks up 2 kittens to give to a friend. Find the probability of each selection.
P(2 male)
P (2 female)
P (1 of each)
Click here to see answer by stanbon(57347)

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