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...
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)
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...
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...
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...
How many different ways can a committee of three men and four women be made out of a group of 12 men and 12 women?
P.S. How would you do this with a graphing calculator (the nCr option under...
Why do you multiply the two values?
Hi! I am having some trouble doing a combinations problem, which is stated below:
How many committees of five people can be selected from 8 men and 8 women if the committee must have 3 men and...
Probability with Combinations?
Please help me! I'm so confused! Please include all steps AND helpful tips that will help me solve these kinds of problems (problems with probability and combinations)! Thanks a lot!
A 5 card...
Can you walk me through this please? Thank you!
NFL. On any given Sunday, any team could beat any other team. If we assume every week a team has 50% chance of winning, what is the probability...
Permutations and Combinations
How do you solve this? Please include all steps. Thanks!
on the tv show american idol, a young rising star is eliminated each week. the first week, each of the 12 contestants sings a song. how...
A sandwich shop is offering a special platter with a choice from 5 types of sandwich filling, 3 styles of potatoes, and a choice of beans or Cole slaw. How many possible choices does a customer...
Permuation or combination question
Susan can choose to take ballet, tap, jazz or piano lessons. She can choose to take a 30 minute lesson or a 60 minute lesson each week. She can choose to take lessons at the community center or...
super easy Combination question
Jessica is taking math, science, and language arts as her 1st 3 classed of the day. In how many orders can sh take the classes.
Solve the following permutation question
How many ways are there to select 11 countries in the United Nations to serve on a council if 1 is selected from a block of 51, 1 are selected from a block of 68 and 9 are selected from the...
A School district is going to hire a soccer coach and assistant coah. In how many different ways can the selection be made if 18 equally qualified people apply for the positions?