Tutors Answer Your Questions about Permutations (FREE)
Question 1074587: Howland Middle School assigns a four-digit identification number
to each student. The number is made from the digits 1,2,3 and 4,
and no digit was repeated. If assigned randomly, what is the
probability that an ID number will end in 3?
Click here to see answer by Edwin McCravy(20054)  |
Question 1075054: I) a (f) b = a/b – 2(b f a)
II) 3 (f) 1 = -7/9
III) 2 (f) 1 = ?
In the equations above, the function of (f) remains unchanged. What does the question mark stand for in the third equation?
a) -2/3, b)-1/3, c) 2/3, d)1, e)3
Click here to see answer by ikleyn(52777)  |
Question 1075427: A bag consists 3 red marbles, 3 blue marbles, 3 green marbles and 2 yellow marbles, all of which are distinguishable from each other. Four marbles are drawn from the bag (without replacement). 1. How many possible draws are there? 2. How many draws contain 4 difference colored marbles? 3. How many draws contain at least 2 red marbles? 4. How many draws contain at least one green marble and no red marble?
Click here to see answer by Boreal(15235)  |
Question 1075774: Three hundred people apply for three jobs. Sixty of the applicants are women.
(a) If three people are selected at random, what is the probability that all are women? (Round your answer to six decimal places.)
Click here to see answer by Theo(13342)  |
Question 1076110: In a local high school, from a group of 16 students comprised of 7 singers and 9 actors, a 6-person executive council is selected.
How many different executive councils are possible if the council must include at least
4 actors?
I tried 7C4 + 12C2
Answer was 3612
Click here to see answer by Boreal(15235)  |
Question 1076286: I am developing a game where a result of 6 or more equals a Hit. I am stuck trying to find a formula for throwing multiple dice and scoring Hits on a sum of 6 or more e.g. for 1 die the answer is 1, for 2 dice it is 26 (?). Add a third dice or more and I am lost. Can anyone help please? Neil
Click here to see answer by Fombitz(32388)  |
Question 1076846: With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the entire batch is accepted if every item in the sample is okay. A company has just manufactured 1282 CDs, and 466
are defective. If 3 of these CDs are randomly selected for testing, what is the probability that the entire batch will be accepted? Does this outcome suggest that the entire batch consists of good CDs? Why or why not?
Click here to see answer by Boreal(15235)  |
Question 1077762: Serial numbers for a product are to be made using 2 letters followed by
4 numbers. If the letters are to be taken from the first
6 letters of the alphabet with no repeats and the numbers are taken from the digits 0 through 9 with no repeats, how many serial numbers can be generated?
Click here to see answer by math_helper(2461)  |
Question 1077961: A hand consists of 4 cards from a well-shuffled deck of 52 cards.
a. Find the total number of possible 4-card poker hands.
b. A red flush is a 4-card hand consisting of all red cards. Find the number of possible red flushes.
c. Find the probability of being dealt a red flush.
Click here to see answer by jorel1380(3719)  |
Question 1078585: You and your best friend are two of the nine students in your speech class who will give a five minute speech during class tomorrow the order of the speeches will be determined at random what is the probability that you are the first student to give her speech in your best friend is second
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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