Questions on Algebra: Probability and statistics answered by real tutors!

Tutors Answer Your Questions about Probability-and-statistics (FREE)

Question 613727: determine the mean, median, mode, and midrange of the set of data. Round your answer to the nearest tenth.
4, 6, 10, 12, 10, 9, 365, 40, 37, 8
Click here to see answer by ewatrrr(10682)

Question 613748: If the odds of winning a raffle are 7:229 what is the probability of winning?
a) 7/236
b) 229/236
c) 7/222
d) 7/229
Click here to see answer by ewatrrr(10682)

Question 613810: Starting with the data values 70 and 100, add three data values to the sample so that the mean is 90, the median is 87, and the mode is 87. Please show all of your work.
Click here to see answer by scott8148(6628)

Question 613822: How many ways can 4 cars and 3 trucks be selected from 8 cars and 11 trucks to be tested for a safety inspection?
Click here to see answer by madamecandy69(1)

Question 614121: Joy has seven pairs of shoes. three are ivory and four are navy. She randomly chooses a pair to wear each day. Find the probability that Joy chooses a ivory pair two days in a row under each condition.
Will she wear the same pair two days in a row or will she not wear the same pair two days in a row
Click here to see answer by stanbon(57387)

Question 614115: find the probability whose odds against are given in the problem
odds against are 5 to 9
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Question 614112: A standard deck of cards has 52 cards in it. There are 4 cards of each number from 2 - 10, as well as 4 Jacks, 4 Queens, 4 Kings and 4 Aces. If three cards are chosen randomly, one right after the other, would the probability of selecting three Kings?
Click here to see answer by stanbon(57387)

Question 614107: Given that x has a poisson distribution of u =5 what is the probability that x=3
Click here to see answer by stanbon(57387)

Question 614104: The diameters in oranges in a certain orchard are normally distributed with a mean of 5.30 inches and a standard deviation of 0.40.
What percentage of the oranges in this orchard have diameters of less than 4.7 inches?
What percentage of the oranges in this orchard are larger than 5.10?
Click here to see answer by stanbon(57387)

Question 614208: 16 Blue , 9 Red ,13 Green ,9 Yellow , 11 Orange, 8 Brown
Choose one M&M at random
a) P(Blue) b) P(Red or Brown)?

Choose Two M&M'S without replacement
a) P(Blue then Green)? b)P( Yellow then Yellow)?
Click here to see answer by ewatrrr(10682)

Question 614220: How many ways can the letters of the word D O T be arranged if all 3 letters are used each time ?
Click here to see answer by stanbon(57387)

Question 614190: Sun wants to sell an antique chair. She is thinking about selling the chair in an online auction. Sun estimates that the probability that she will get $100 for the chair is 25%, the probability that she will get $200 is 40%, and the probability that she will get $600 is 35%.
However, an antique dealer in Sun’s neighborhood has offered her $250 for the chair.
If Sun wants to maximize her expected payment, should she sell the chair online, or sell it to the dealer? Explain.
Click here to see answer by stanbon(57387)

Question 614354: Poker is a common game in which players are dealt five cards from a deck of cards. It can be shown that there are 2,598,960 different possible poker hands. The winning hands (from highest to lowest) are shown in the table below. Find the requested probabilities. (Use a calculator and give the answer to five decimal places.)
Royal Flush is 4 hands
Other straight flush is 36 hands
Four of a kind is 624 hands
Full house is 3,744 hands
Flush is 5,108 hands
Straight is 10,200 hands
Three of a kind is 54,912 hands
Two pair is 123,552 hands
One pair is 1,098,240 hands
Other hands is 1,302,540 hands
(1) What are the chances of being dealt a full house or better?
(2) What are the chances of being dealt a hand that will lose to a flush?

Click here to see answer by edjones(7569)

Question 614423: Find the area under the standard normal curve to the right of z=0.12?
Click here to see answer by ewatrrr(10682)

Question 614422: A bag has 10 blue marbles and 8 yellow marbles. Half of the yellow marbles are made of plastic. A marble is selected at random from the bag. What is the probability that it is a yellow, plastic marble?
Click here to see answer by ewatrrr(10682)

Question 614426: Between the hours of 2 and 4pm, the average number of phone calls per minute coming into the switchboard of a company is 1.5. Find the probability that during a particular five-minute period there will be
a. 0,
b. 2,
c. 4 or fewer,
d. More than 7,
phone calls.
Click here to see answer by ewatrrr(10682)

Question 614475: I have several confirmations on problems submitted. It has been over a week and still no response. How do you expect me to referr your website to students if you can't answer my questions within your period as stated above. Thank you for your immediate attention in this matter. Kim S. Blakeney
Click here to see answer by Alan3354(30993)

Question 614519: A restaurant association says the typical household spends a mean of $3568 per year on food away from home. You randomly select 12 households and find out how much each spent on food away from home per year. Can you reject the restaurant association's claim at alpha=0.05?
3455 3635 3441 3006 3372 4295 3406 1997 4381 3381 3769 2879
Ho: mu=3568 (claim)
Ha: mu=(with line through the = sign)3568
a) Find the P-value
Click here to see answer by stanbon(57387)

Question 614499: Please help me solve this question:
In a certain lottery, there are ten balls, numbered 1,2,3,4,5,6,7,8,9,10. Of these, five are drawn in order. If you pick five numbers that match those drawn in the correct order, you win $1,000,000. What is the probability of winning such a lottery?
Click here to see answer by stanbon(57387)

Question 614474: Find the normal approximation for the binomial probability that x = 5,n = 12 and p = 0.3. Compare this probability to P(x = 5).
Click here to see answer by stanbon(57387)

Question 614618: a bag contains 5 red and 20 blue marbles. what is the probability of picking out a red marble, keeping it out of the bag, and then picking another red marble?
Click here to see answer by stanbon(57387)

Question 614635: a box contains ten balls of like shape and size. Three are red, two are white, and five are blue. The balls are numbered from 1 to 10. If the balls are drawn at random without replacement for each problem, find the following probabilities.
P(one red)=
P(two red)=
P(one white)=
P(one white, then one red)=
P(number 6)=
P(one ball with number > 5)=
P(one ball with number < 4)=
P(2 or 7)=
P(one ball with an even number)=
P(one ball even, then one ball odd)=
P(red ball, then white ball, then blue ball)=
P(1 and 2 and 3)=

Click here to see answer by stanbon(57387)

Question 614745: What is the probability of rolling a sum of 11 or 7 on a pair of number cubes?
Click here to see answer by Edwin McCravy(8909)

Question 614747: In how many ways can 15 basketball players be listed in a program?
Click here to see answer by ashipm01(26)

Question 614744: You roll a standard number cube. Find P(number greater than 4).
Click here to see answer by Edwin McCravy(8909)

Question 614712: If Steve can mix 20 drinks in 5 minuets, Sue can mix 20 drinks in 10 minuets, and Jack can mix 20 drinks in 15 minuets, how much time will it take all 3 of them working together to mix 20 drinks??
Click here to see answer by ankor@dixie-net.com(15660)

Question 614748: A yogurt shop offers four different flavors of frozen yogurt and eight different toppings. How many choices are possible for a single serving of frozen yogurt with one topping?
Click here to see answer by stanbon(57387)

Question 614743: 4. Seven students volunteer for a committee. How many different three-person committees can be chosen? (1 point)
Click here to see answer by stanbon(57387)

Question 614741: In a candy dish there are 6 purple candies and 8 blue candies. If 3 candies are randomly chosen from the dish, what is the probability of choosing 2 purple candies?
Click here to see answer by stanbon(57387)

Question 614691: For a normal population with population = 70 and population standard deviation = 20, what is the probability of obtaiing a sample mean equal to or greater than 75 for a random sample of n= 225? How do you arrive at the probability by reporting the standard error and the z-score?
Click here to see answer by stanbon(57387)

Question 614688: What are the odds in favor of drawing a card higher than a 10 from an ordinary deck of cards
Click here to see answer by stanbon(57387)

Question 614793: A manager uses the following equation to predict monthly receipts: Yt = 4,000 + 30t. What is the forecast for July of next year if t = 0 in April of this year?
4,030
4,150
4,450
4,600
Click here to see answer by stanbon(57387)

Question 614533: using the straingt line formul of y-mx+b 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 by using the regression equation/straight line formula:
(1) 20
(2) 25
(3) 34
All I have is y=m.20+1.5?
Click here to see answer by stanbon(57387)

Question 614808: A discrete random variable has a mean of 400 and a variance of 64. What is the standard deviation?

Click here to see answer by stanbon(57387)

Question 614800: A consulting firm has received 2 Super Bowl playoff tickets from one of its clients. To be fair, the firm is randomly selecting two different employee names to 'win' the tickets. There are 6 secretaries, 5 consultants and 4 partners in the firm. Which of the following statements is not true?
The probability of a secretary winning a ticket on the first draw is 6/15.
The probability of a secretary winning a ticket on the second draw given a consultant won a ticket on the first draw is 6/15.
The probability of a consultant winning a ticket on the first draw is 1/3.
The probability of two secretaries winning both tickets is 1/7.
Click here to see answer by stanbon(57387)

Question 614925: 10 PEOPLE ARE RANDOMLY SEATED IN A ROW OF 10 CHAIRS. jOE AND jIM ARE IN A GROUP OF 10. wHAT IS THE PROBABILITY JOE AND JIM ARE SEATED ON THE ENDS?
Click here to see answer by solver91311(16897)

Question 614923: DRAW 8 CARDS FROM A STANDARD DECK WITH REPLACEMENT. wHAT IS THE PROBABILITY THAT OF THESE FIRST 8 CARDS 5 ARE SPADES?
Click here to see answer by solver91311(16897)

Question 614924: HOW MANY SUBSETS ARE POSSIBLE FROM A SET WITH 55 ELEMENTS?
Click here to see answer by solver91311(16897)

Question 614924: HOW MANY SUBSETS ARE POSSIBLE FROM A SET WITH 55 ELEMENTS?
Click here to see answer by ashipm01(26)

Question 614924: HOW MANY SUBSETS ARE POSSIBLE FROM A SET WITH 55 ELEMENTS?
Click here to see answer by Theo(3464)

Question 614883: Rick is at a horse race and decides to predict the exact order in which the horses will finish first, second, and third. If 11 horses are racing, and each horse is equally likely to win, what is the probability that Rick will guess correctly?
Click here to see answer by Theo(3464)

Question 614938: hi my name is robert and i need help with this question thankyou, A sample of 81 was taken from a population with a standard deviation of 45 kilograms. If the sample mean was 112 kilograms, the mean of any other sample of 81 will be within what range 68% of the time?
Click here to see answer by stanbon(57387)

Question 614931: How many TV's are there in your household?” was one of the questions on a questionnaire sent to
5000 people in Japan. The collected data resulted in the following distribution:

One of these households is selected at random.
A) What percentage of the households have at least one TV? 1.9%
B) What percentage of the households have at most 3 TV's? 24.4%
Click here to see answer by stanbon(57387)

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