Tutors Answer Your Questions about Permutations (FREE)
Question 811436: Hey all,
For some stupid reason I am drawing a blank on how to answer this question: The license plates in a province consist of three letters followed by three single-digit numbers. If Edward’s initials are EAM, What is the probability that his license plate will have his initials in the correct order?
I believe the answer is 1/17,576,000
1/26 * 1/26 * 1/26 * 1/10 * 1/10 * 1/10
Am I correct on how to solve this?
Thank you!
Click here to see answer by richwmiller(17219)  |
Question 812909: If a quiz has five questions, and you are asked to rate your response to each question on a scale of 1 to 5 (1 being not likely at all, and 5 being very likely) and then total your score for all five questions, how many different total scores are possible?
Click here to see answer by jsmallt9(3758) |
Question 813120: An employer interviews 10 people for 5 management positions in a company, and 5 of the 10 people are men. If all 10 are qualified, in how many ways can the employer fill the management positions if exactly 1 is a man?
Click here to see answer by stanbon(75887) |
Question 815305: 1)number of ways selecting 6 correct answers from 25 multiple choice questions having 4 options each.(with skipping and without skipping of questions)
2)probability of answering 5 or more than 5 correct answers from 6 questions having 4 options.
Click here to see answer by faiz19(4) |
Question 816250: How many 4 digit numbers can be formed if repetition is not allowed from the digits 0 to 9 ?
What's wrong with my answer: 6*8*9*10(10 for units, 9 for tens, 8 for hundreds,6 for thousand if zero was not taken)+ 7*8*9*10 (10 for units, 9 for tens ,8 for hundreds, 7 for thousand if zero was taken) =9360
Click here to see answer by richwmiller(17219)  |
Question 816250: How many 4 digit numbers can be formed if repetition is not allowed from the digits 0 to 9 ?
What's wrong with my answer: 6*8*9*10(10 for units, 9 for tens, 8 for hundreds,6 for thousand if zero was not taken)+ 7*8*9*10 (10 for units, 9 for tens ,8 for hundreds, 7 for thousand if zero was taken) =9360
Click here to see answer by Edwin McCravy(20054)  |
Question 817044: A marching band in one school has 40 members. They can march single file, in a row of 2, or any other arrangement in which all rows have the same number of people. How many marching arrangements are possible for the band?
Click here to see answer by stanbon(75887) |
Question 816557: How many different letter arrangements are possible using all the letters in the word "evaluate"?
I thought I had to do something like
8 / 2!2! = 8 / 4 = 2
But on my test I got it wrong and I knew it couldn't be the right answer. This subject really confuses me!
Click here to see answer by stanbon(75887) |
Question 817904: Which of the following is not a combination?
The number of 2 person subcommittees that can be chosen from a 10 person committee.
The number of 2 person teams that can be picked form 10 people
The number of ways a President and Vice President can be chosen from a group of 10 people.
Click here to see answer by Edwin McCravy(20054)  |
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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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