Question: Consider a binomial experiment. You are asking 50 people if they store their toilet paper roll-side up. They can only answer yes or no. Based on past experience, we expect 35% of people to say yes. What is the expected probability that 15 people will say yes?

Answer Options:
0.9%
0%
9.2%
1%

Answer: 0.9%

 

Question: In a binomial experiment, which of the following is true?

Answer Options:
Experiments can have more than two outcomes
The number of trials is variable
A current event does not influence the next event
Events are influenced by previous events

Answer: A current event does not influence the next event

 

Question: Joe is shopping for a new shirt. He considers 7 different styles of shirts, and then considers 4 different colors in each style. If he wants to quickly determine how many possible outcomes he is considering, Joe should rely on

Answer Options:
The fundamental counting principle
An arithmetic series
Mathematical induction
A geometric sequence

Answer: The fundamental counting principle

Question: Bradley’s list constitutes a total of 25 entries. His list takes one number and multiplies it by a constant factor each time. What type of series is this?

Answer Options:

A geometric sequence
A geometric series
An arithmetic sequence
An arithmetic series
Correct Answer:

A geometric sequence

 

Question: There is a bin of socks, and each sock is either black or white. You need to have two matching pairs of socks. How many socks must you draw out of the bin to guarantee you have two matching pairs?

Answer Options:
5

Answer: 5

 

Question: What are the possible truth values of Boolean variables?

Answer Options:
True, False
All answers are correct
F, T
0, 1

Answer: All answers are correct

 

Question: The branch of mathematics which emphasizes counting techniques is known as

Answer Options:
Numerology
Combinatorics
Algebra
Arithmetic

Answer: Combinatorics

 

Question: Which of the following arithmetic sequences demonstrates a linear relationship?

Answer Options:
2, 4, 16, 256…
2, 4, 8, 16…
10, 100, 1000, 10000…
3, 6, 9, 12…

Answer: 3, 6, 9, 12…

 

Question: Alvin is an interior decorator. He is decorating a banquet hall using 6 bright colored spotlights. The space he is decorating is a fixed circle in shape, and each spotlight has a different color. How many different spotlight arrangements can Alvin create?

Answer Options:
60
20
120
36

Answer: 120