166 Answered Questions for the topic Combinations

Combinations

03/13/15

Please Help!! Coin toss

If you toss a coin 10 times and list the results (heads or tails) in order, how many different orders are possible?

How many of these are less than 5000?

In this version, you are to form a 4-digit number from the digits 1, 2, 3, 4, 7, 8, and 9, using each at most once.   How many of these are less than 5000?

03/07/15

What is the value of w2?

For this problem, assume that 2, 6, 5, and 4 are equally likely, a 1 is three times as likely as a 4, and a 3 is four times as likely as a 1. (1) What is the value of w2? (2) What is the value of... more

How many ways can you pick the cars so not all are the same size?

For this problem, assume that you are to pick 4 cars from the motor pool, which contains 7 subcompact cars, 6 compact cars, and 4 midsize cars. How many ways can you pick the cars so not all are... more

03/05/15

1) What is the value of w2? (2) What is the value of w1? (3) What is the value of w3?

For this problem, assume that 2, 6, 5, and 4 are equally likely, a 1 is three times as likely as a 4, and a 3 is four times as likely as a 1.(1) What is the value of w2? (2) What is the value of... more

03/05/15

What is the probability they sum to 9, 3, or 6?

involving the sum of two die rolls.(1) What is the probability they sum to 9, 3, or 6? (2) What is the probability they sum to at least 7?

03/05/15

What is the probability that at least 2 of the dinners selected are pasta dinners?

Assume that there are 15 frozen dinners: 6 pasta, 5 chicken, and 4 seafood dinners. The student selects 5 of them.What is the probability that at least 2 of the dinners selected are pasta dinners?

03/05/15

In how many ways can the assignments be made if John writes the introduction?

Assume that 12 students, including John, are working on the project report, which contains an introduction, 4 chapters, and a conclusion for a total of 6 sections.(1) In how many ways can the... more

Finite Homework, need help: permutations, combinations, probability.

1. For this problem, assume the cooler contains 32 cans, 22 of which are regular, and the rest of which are diet. What is the probability of selecting 5 cans from the cooler so that at least 4 are... more

How many different teams can be selected?

Assume that there are 9 girls and 8 boys in the neighborhood club, and a team of 5 is to be selected.(1) How many different teams can be selected? (2) How many different teams can be selected if... more

In how many possible ways can the selection be made so that the value of the coins is at least 25 cents?

you are selecting three (3) coins, but assume that there are 5 dimes, 3 nickels, and 2 quarters. In how many possible ways can the selection be made so that the value of the coins is at least 25... more

02/19/15

In how many different ways can the 3 CD's be selected?

student who wants to buy 3 CDs, but assume that there are 3 CDs featuring the piano, 4 CDs featuring the trumpet, and 5 CDs featuring the saxophone.   (1) In how many different ways can the 3... more

02/19/15

In how many ways can the selection be made so that at least one of each color is drawn?

Your urn contains 7 red balls, and 9 blue balls, and you draw 4 balls.
Combinations

11/10/14

In a collection of dimes and nickels, there are 36 coins. The total value of the coins is $2.90. How many coins of each type are there?

In a collection of dimes and nickels, there are 36 coins. The total value of the coins is $2.90. How many coins of each type are there?
Combinations

10/27/14

How many different combinations?

Johnny must answer 15 questions, each question only has 2 answer choices (A or B). Johnny must then rank each of his 15 answers in order of confidence 1 to 15, using each number exactly... more
Combinations

09/29/14

In how many ways can we arrange five boys and three girls in a straight row so that no two girls are side by side

In how many ways can we arrange five boys and three girls in a straight row so that no two girls are side by side
Combinations Permutation

09/23/14

How many ways can this be done?

A Book Store wishes to display five books in the window of the shop. They want to choose 5 mystery books from a list of 12 new mystery books. How many ways can this be done? (order is not important)
Combinations Factorial

09/23/14

How many different combinations of questions can be chosen?

On an English test, Jeff must write an essay for three of six questions in Part 1, and two of five questions in Part 2. How many different combinations of questions can be chosen?
Combinations

09/08/14

How many combinations?

Bob has 25 cents in his pocket, but does not have a quarter. If you can tell all his combinations of coins he should have to sum to 25 cents, he will give you the 25 cents. Please list all the... more
Combinations

09/08/14

How many combinations are there?

Amy, Ben, Charles, and Don all called into a radio show to get free tickets to a concert. Find out how many different orders there are and list all the possible orders in which their calls could... more
Combinations

09/02/14

how many combinations in 61 flavors

how many soda combinations with 61 flavors of soda?
Combinations

07/20/14

How many socks must he take out of the drawer to be sure that he has a pair, given any of the following colour combinations?

Joe has 12 socks in a drawer. It is dark and he has no light. How many socks must he take out of the drawer to be sure that he has a pair, given any of the following colour combinations?   a) 4... more
Combinations

07/07/14

I need to have the combination for this question and the conclusion

Martha luis is having a dinner party, she has 8 different bottles of red wine and 6 different botttle of white wine on her rack. she wants 3 bottles of red wine and 1 bottle of white wine to serve... more
Combinations Math

06/26/14

How many different towers can she build that are three blocks high?

Ann is building towers using just blue and yellow blocks. She can build only four different towers that are two blocks high.   blue+blue, blue+yellow, yellow+blue, yellow+yellow   How many... more
Combinations Functions

05/23/14

Combining Functions?

The total number of gallons of water passing through a pipe after x seconds is computed by f(x)=10x. Another pipe delivers g(x)=5x gallons after x seconds. Identify the function h that computes the... more

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