Theoretical and Experimental Probability Answers

A dance instructor chose four of his 10 students to be on stage for a performance.If order does not matter, in how many different ways can the instructor choose the four students?

Three out of seven students in the cafeteria line are chosen to answer survey questions.How many different combinations of three students are possible?

How many ways can eight letters be arranged into groups of five where order matters and the first two letters are already chosen?

In how many ways can the letters in the word spoon be arranged?

Fiona chooses three towels from a group of five to pack in her beach bag for herself and her two brothers. Let the five towels be represented by A,B,C,D, and E.If Fiona chooses towel A for herself, which statements about the possible outcomes for her brothers’ towels are true? Select three options.There are 10 possible ways to choose the group of towels.The combination BC is not the same as CB.She has four choices for the first brother’s towel and three choices for the second brother’s towel.ABC, ABD, ABE, ACD, ACE, and ADE are the possible outcomes.If Fiona did not choose towel A for herself, there would be more outcomes.

Fiona needs to choose a five-character password with a combination of three letters and the even numbers 0, 2, 4, 6, or 8.If she uses her initials, F, J, and S in order as the first three characters, and she does not use the same digit more than once in her password, how many different possible passwords are there?

A membership committee of three is formed from four eligible members. Let the eligible members be represented by A, B, C, and D. The possible outcomes include S = {ABC, ABD, ACD, BCD}.Which statements about the situation are true? Select three options.There are four ways to choose the committee.There are three ways to form the committee if person D must be on it.If seven members are eligible next year, then there will be fewer combinations.If persons B and C must be on the committee, there are two ways to form the committee.If persons A and C must be on the committee, then there is only one way to form the committee.

Holly chooses seven out of nine plants for the front of her house with the remaining plants to be used on the side of the house.If order does not matter, in how many ways can she choose the plants for the front of the house?

Set X is made up of the possible ways five students, represented by A, B, C, D, and E, can be formed into groups of three. Set Y is made up of the possible ways five students can be formed into groups of three if student A must be in all possible groups.Which statements about the situation are true? Select three options.Set X has 10 possible groupings.X YSet Y = {ABC, ABD, ABE, ACD, ACE, ADE}If person E must be in each group, then there can be only one group.There are three ways to form a group if persons A and C must be in it.

Evaluate the expression.4! • 3!