Unit 8B Practice Test

Front

₂₀P₂

Back

380

Front

What does ₁₀P₅ mean?

Back

Permutations with 10 choices and 5 positions

Front

Determine whether the following scenario is a permutation or a combination: Selecting a lead and an understudy for a school play.

Back

Permutation

Front

Permutation, combination, or neither?
Rob and Mary are planning trips to 9 countries this year.  There are 13 countries they would like to visit.  They are deciding which countries to skip.

Back

combination

Front

Permutation, combination, or neither?
The batting order for seven players on a 12 person team.

Back

permutation

Front

Is the order of arrangement important?
Find the number of ways to form a team of three players for a game out of a group of 10 individuals.

Back

No

Front

Permutation, combination, or neither?
There are 45 applicants for three Computer Programmer job positions.

Back

combination

Front

Find the number of words, with or without meaning, that can be formed with the letters of the word ‘CHAIR’.

Back

120

Front

How many ways can a club select a president, vice president, and a secretary from a group of 5 people?

Back

60

Front

At the middle school, a student takes 4 core classes a day. There are 6 different core classes offered. How many different combinations of classes are there?

Back

The answer is \( \binom{6}{4} = 15 \).