Questions on Algebra: Combinatorics and Permutations answered by real tutors!

Algebra ->  Permutations -> Questions on Algebra: Combinatorics and Permutations answered by real tutors!      Log On


   



Tutors Answer Your Questions about Permutations (FREE)


Question 1196823: You have just been assigned a random 4-digit password made up of digits from 0 to 9. What is the probability that your password starts with a 3? Repetition is not allowed.
Click here to see answer by greenestamps(13198) About Me 

Question 1196822: There are 9 people on a basketball team. The probability that you and your two best friends get to stand together in
the team picture is:

Click here to see answer by greenestamps(13198) About Me 

Question 1196819: In the card game Crazy Eights, how many different eight-card hands can be dealt from a standard 52- card deck?
Click here to see answer by greenestamps(13198) About Me 
Question 1196819: In the card game Crazy Eights, how many different eight-card hands can be dealt from a standard 52- card deck?
Click here to see answer by math_tutor2020(3816) About Me 

Question 1196846: A restaurant offers four sizes of pizza, two types of crust, and eight toppings. How many possible types of pizza
with one topping are there?

Click here to see answer by greenestamps(13198) About Me 

Question 1197117: The protein-coding strand of the average human gene consists of 1,350 nucleotides. Assuming that each nucleotide can take any of four values (A, T, C, or G), how many different genes with exactly 1,350 nucleotides are possible?

Click here to see answer by math_tutor2020(3816) About Me 

Question 1197177: How many arrangements of the letters in KILLNACOUNTING are possible?

Click here to see answer by math_tutor2020(3816) About Me 
Question 1197177: How many arrangements of the letters in KILLNACOUNTING are possible?

Click here to see answer by ikleyn(52776) About Me 

Question 1197328: Four people form a line at a grocery store. What is the probability that they line up in descending order of age?
Click here to see answer by MathLover1(20849) About Me 
Question 1197328: Four people form a line at a grocery store. What is the probability that they line up in descending order of age?
Click here to see answer by math_tutor2020(3816) About Me 

Question 1197330: You have just been assigned a random 3-digit password made up of digits from 0 to 9. What is the probability
that your password starts with a 5? (Observation: A PASSWORD CAN START WITH A ZERO)

Click here to see answer by Boreal(15235) About Me 

Question 1197329: A manager interview in random order five candidates for a promotion. What is the probability that the most
experienced candidate will be interviewed first followed by the second most experienced candidate?

Click here to see answer by Boreal(15235) About Me 
Question 1197329: A manager interview in random order five candidates for a promotion. What is the probability that the most
experienced candidate will be interviewed first followed by the second most experienced candidate?

Click here to see answer by ewatrrr(24785) About Me 
Question 1197329: A manager interview in random order five candidates for a promotion. What is the probability that the most
experienced candidate will be interviewed first followed by the second most experienced candidate?

Click here to see answer by ikleyn(52776) About Me 

Question 1197327: The Sluggers baseball team has a starting line-up consisting of 9 players. If the batting order is randomly
assigned, what is the probability that Tim will bat first, followed by Amanda?

Click here to see answer by Boreal(15235) About Me 

Question 1197363: A focus group of four members is to be randomly selected from an engineer team consisting of five engineers and seven technologists.
a) What is the probability that the focus group will be comprised of engineers only?
b) What is the probability that the focus group will be comprised of 2 engineers and 2 technologists?
c) What is the probability that the focus group will have at least 2 technologists?

Click here to see answer by ikleyn(52776) About Me 

Question 1197366: A committee of 4 people is to be formed from a pool of 8 people. What is the probability James is in the
committee?

Click here to see answer by ikleyn(52776) About Me 
Question 1197366: A committee of 4 people is to be formed from a pool of 8 people. What is the probability James is in the
committee?

Click here to see answer by greenestamps(13198) About Me 

Question 1197379: Six students are to line up for a photograph.
a) In how many ways can the 6 students standing in a line be arranged?
b) In how many ways can the 6 students standing in a line be arranged if Jill must be first?
c) In how many ways can 6 students standing in a line be arranged if Jill must be first and Meera last?

Click here to see answer by ikleyn(52776) About Me 

Question 1197425: (a) How many words can be formed using letter of PEPSUDENT using each letter at most once?
i) If each letter must be used,
ii) If some or all the letters may be omitted.

Click here to see answer by MathLover1(20849) About Me 
Question 1197425: (a) How many words can be formed using letter of PEPSUDENT using each letter at most once?
i) If each letter must be used,
ii) If some or all the letters may be omitted.

Click here to see answer by math_helper(2461) About Me 
Question 1197425: (a) How many words can be formed using letter of PEPSUDENT using each letter at most once?
i) If each letter must be used,
ii) If some or all the letters may be omitted.

Click here to see answer by ikleyn(52776) About Me 

Question 1197427: How many ways are there to distribute 15 district item into 5 distinct boxes with:
i) At least two empty box.
ii) No empty box.

Click here to see answer by Edwin McCravy(20054) About Me 
Question 1197427: How many ways are there to distribute 15 district item into 5 distinct boxes with:
i) At least two empty box.
ii) No empty box.

Click here to see answer by greenestamps(13198) About Me 
Question 1197427: How many ways are there to distribute 15 district item into 5 distinct boxes with:
i) At least two empty box.
ii) No empty box.

Click here to see answer by ikleyn(52776) About Me 
Question 1197427: How many ways are there to distribute 15 district item into 5 distinct boxes with:
i) At least two empty box.
ii) No empty box.

Click here to see answer by rippletable(1) About Me 

Question 1197462: How many different professionals committees of 10 people can be formed, each containing at least 2 Professors, at least 3 Managers and 3 ICT Experts from list of 10 Professors, 6 Managers and 8 ICT Experts?
Click here to see answer by ikleyn(52776) About Me 

Question 1197565: A pair of 6 sided dice are tossed. What is the probability that at least one of the dice has a value greater than or equal to 5?
Click here to see answer by math_tutor2020(3816) About Me 
Question 1197565: A pair of 6 sided dice are tossed. What is the probability that at least one of the dice has a value greater than or equal to 5?
Click here to see answer by ikleyn(52776) About Me 

Question 1197569: In a recent election there were 1000 eligible voters. They were asked to on two issues, A and B. The results were as follows: 200 people voted for A, 400 people voted for B, and 25 people voted for A and B. If one person is chosen at random from the 1000 eligible voters, find the following probabilities:
1. The person voted for A, given that they voted for B.
Answer:
2. The person voted for B, given that they voted for A.
Answer:

Click here to see answer by math_tutor2020(3816) About Me 

Question 1197574: Two marbles are drawn randomly one after the other without replacement from a jar that contains 9 red marbles, 9 white marbles, and 3 yellow marbles. Find the probability of the following events.
(a) A red marble is drawn first followed by a white marble.
The probability is:
(b) A white marble is drawn first followed by a white marble.
The probability is:
(c) A yellow marble is not drawn at all.
The probability is:

Click here to see answer by greenestamps(13198) About Me 

Question 1197600: A confidence interval for a population mean has length 24.
a) Determine the margin of error.

b) If the sample mean is 65, obtain the confidence interval.
Confidence interval: ( , ).

Click here to see answer by ewatrrr(24785) About Me 

Question 1197598: A recent survey showed that among 775 randomly selected subjects who completed 4 years of college, 162 smoke and 613 do not smoke. Determine a 95% confidence interval for the true proportion of the given population that smokes.
95% CI: to

Click here to see answer by ewatrrr(24785) About Me 

Question 1197599: A random sample of 800 home owners in a particular city found 232 home owners who had a swimming pool in their backyard. Find a 95% confidence interval for the true percent of home owners in this city who have a swimming pool in their backyard. Express your results to the nearest hundredth of a percent.
Answer: to %

Click here to see answer by ewatrrr(24785) About Me 

Question 1197597: A charity holds a raffle in which each ticket is sold for $30. A total of 9600 tickets are sold. They raffle one grand prize which is a Mercedes Benz E350 valued at $60000 along with 5 second prizes of Ducati motorcycles valued at $15000 each.
What are the expected winnings, in dollars, for a single ticket buyer? Your answer should be accurate to two decimal places (i.e. to the nearest cent).
Answer: $

Click here to see answer by greenestamps(13198) About Me 

Question 1197596: Suppose that a pair of dice is tossed. One die has 9 sides, the other has 7 sides. What is the expected value of the sum of the two dice? (Don't write out the full probability model, add the two expected values.)
Answer:

Click here to see answer by greenestamps(13198) About Me 

Question 1197637: In how many distinct ways can the letters of the word LLAMAS be​ arranged?
Click here to see answer by ewatrrr(24785) About Me 

Question 1197853: A random sample of 14 size AA batteries for toys yield a mean of 2.95 hours with standard deviation, 0.72 hours.
(a) Find the critical value, t*, for a 99% CI. t* =
(b) Find the margin of error for a 99% CI.

Click here to see answer by ewatrrr(24785) About Me 

Question 1197852: Katie thinks that people living in a rural environment have a healthier lifestyle than other people. She believes the average lifespan in the USA is 77 years. A random sample of 16 obituaries from newspapers from rural towns in Idaho give 𝑥¯=80.38 and 𝑠=1.16 s=1.16. Does this sample provide evidence that people living in rural
Idaho communities live longer than 77 years?
State the null and alternative hypotheses:(Type "mu" for the symbol μ, e.g. mu >1 for the mean is greater than 1, mu <1 for the mean is less than 1, mu not = 1 for the mean is not equal to 1)
H0:
Ha :
(b) Find the test statistic, t =
(c) Answer the question: Does this sample provide evidence that people living in rural Idaho communities live longer than 77 years? (Use a 10% level of significance)
(Type: Yes or No)

Click here to see answer by ewatrrr(24785) About Me 

Question 1198366: How many different 4-letter permutations can be formed from the letters in the word REPRESENT?
I know that if I want deffrent letter it would be permutation
like 6P4 = 360
but how about the repeated letters like the E 3 times and r 2 times?

Click here to see answer by ikleyn(52776) About Me 
Question 1198366: How many different 4-letter permutations can be formed from the letters in the word REPRESENT?
I know that if I want deffrent letter it would be permutation
like 6P4 = 360
but how about the repeated letters like the E 3 times and r 2 times?

Click here to see answer by ewatrrr(24785) About Me 
Question 1198366: How many different 4-letter permutations can be formed from the letters in the word REPRESENT?
I know that if I want deffrent letter it would be permutation
like 6P4 = 360
but how about the repeated letters like the E 3 times and r 2 times?

Click here to see answer by Edwin McCravy(20054) About Me 

Question 1198441: a company of 20 men is to be divided into 3 sections so that there are 3 men in the first, 5 in the second, and 12 in the third. in how many ways can this be done without multiplying?
Click here to see answer by ikleyn(52776) About Me 

Question 1198949: How many 3 letter words can be made from the letters of MISSISSIPPI if all the letters must be distinct?
Click here to see answer by ikleyn(52776) About Me 

Question 1199058: Anna is preparing 30 days of dessert for her pet beetle. She starts by mixing 3.67 grams of pureed ants with a 1.43 gram blueberry. She then divides the mixture into 30 equal parts

Click here to see answer by ikleyn(52776) About Me 

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