Tutors Answer Your Questions about Permutations (FREE)
Question 977178: You draw a card from a standard deck of 52 cards, then roll a 6-sided die.
1. What is the probability of drawing an two card, and rolling a two on the die?
2. What is the probability of drawing an even card, and rolling an even number on the die?
(Express your answer as a fraction.)
Click here to see answer by Boreal(15235)  |
Question 977309: In the Smart National Challenge, the probability of a person clearing the
certification, and appearing for the Equity Research certification is 0.5. There is
a record that given a candidate has appeared for an equity research
certification, the probability that he will clear it is 0.7. The chance of a person
getting in top 10 rank holders and appearing for the equity research certificate
is 0.3. What percentage of candidates, given they have appeared for an equity
research certification, are likely to get into top 10 rank holders?
Click here to see answer by stanbon(75887) |
Question 975685: A program consists of four musical numbers and
three speeches. In how many ways can the program
be arranged so that it begins and ends with a musi-
cal number
An experiment has six possible outcomes with the
following probabilities:
Is this a valid probability assignment?
P1=0.02
P2=0.3
P3 =0.1
P4=0.0
P5=0.2
P60.3
Click here to see answer by Fombitz(32388)  |
Question 977501: A restaurant donated 6 identical gift cards to be raffled off at a local charity event. At the charity's fundraising event, 12 people buy a raffle ticket to try to win one of the gift cards, and their raffle tickets are placed into a single can. The raffle organizer then randomly picks 6 tickets from the can to determine the gift card winners. How many possible outcomes are there?
Click here to see answer by xxLaurax(5)  |
Question 977501: A restaurant donated 6 identical gift cards to be raffled off at a local charity event. At the charity's fundraising event, 12 people buy a raffle ticket to try to win one of the gift cards, and their raffle tickets are placed into a single can. The raffle organizer then randomly picks 6 tickets from the can to determine the gift card winners. How many possible outcomes are there?
Click here to see answer by Jjona5(1) |
Question 977325: If you know that 20 women and 16 men are still alive, and are told exactly ten of them will attend, what is the probability that you would have exactly five men and exactly five women attend?
Please explain in detail how you got the answer.
Click here to see answer by anand429(138)  |
Question 977814: I've run into a road block with Combinatorial Probability. I did the first two questions on my homework fine, I think the idea here is to add a step. Do not know what the next step is (meaning, the material is progressively more difficult). I computed previously leading to the n!/r!(n-r)!.
3. There are 27 tasks available. You will be randomly assigned 12 of them. There are 10
of them that you want to do.
(a) What is the probability that you will be assigned none of the tasks that you want?
(b) What is the probability that you will be assigned exactly 7 of the tasks that you
want?
(c) What is the probability that you will be assigned at least 1 of the tasks that you
want?
(d) What is the probability that you will be assigned at least 7 of the tasks that you
want?
Click here to see answer by solver91311(24713)  |
Question 978103: The Niagara Ice dogs have 4 people trying out for goal. Their coach wants to try a different goalie in each of the three periods of an exhibition game. In how many ways can the coach choose the three different goalies for the game?
Click here to see answer by Boreal(15235)  |
Question 978632: Given 3 numbers A, B and C. What is the sum of all numbers whose digits are made only of 4, 5 and 6, that have at most A 4's, B 5's, and C 6's in decimal representation, respectively.
Constraints: 0 <= A, B, C <= 10. ( "<=" indicates less than or equal to).
Click here to see answer by Edwin McCravy(20054)  |
Question 978719: if 7 houses of different designs are to be constructed in a housing project so that 4 particular designs are to be constructed on one side of a street and the remaining 3 on the other side, in how many ways can the houses be placed?
Click here to see answer by Theo(13342)  |
Question 979302: Three statistics professors and seven chemistry professors are available to be advisors to a student organization. The student organization needs two of the professors to be advisors. If each professor has an equal chance of being selected, what is the probability that both professors are chemistry professors?
Click here to see answer by KMST(5328)  |
Question 979205: 1. In how many ways can the letters of the word POLICEMAN be arranged if the "word" must begin with L and end with a vowel?
2. What is the probability that if the letters of POLICEMAN are randomly placed in a row, the "word" will begin with L and end with a vowel?
Click here to see answer by Edwin McCravy(20054)  |
Question 980253: a) In how many different ways can the five starting players of a basketball team be introduced to the public?
b) Four names are drawn from among the 24 members of a club for the offices of president, vice-president, treasurer and secretary. In how many different ways can this be done?
c) How many different committees of two chemists and one physicist can be formed from the four chemists and three physicists on the faculty of small college?
Click here to see answer by onlinepsa(22)  |
Question 980377: questions
(1) If the probability of an event NOT happening is 0.06 what is the probability of it happening?
(2)Evaluate 10C3?
(3)if a teacher grades distribution is over 3 years what are empirical probability for some to get A,C,D when A=39, C=258, and D=124?
(4)If there are 984 flower which 632 are white and 352 are purple what is the probability that you will pick a white flower?
Click here to see answer by Boreal(15235)  |
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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
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