Elementary Stats Ch4 Review

Question 1

In a binomial experiment, n represents _____________.

Accepted Answer

the number of trials

Question 2

A binomial experiment has how many outcomes?

Accepted Answer

2

Question 3

The sum of the probabilities in a probability distribution equals ____.

Accepted Answer

1.0

Question 4

This type of random variable can take an infinite number of values within an interval.

Accepted Answer

continuous

Question 5

The distance you throw a football represents a _______ random variable.

Accepted Answer

continuous

Question 6

The mean of a discrete random variable is the ________ of a probability experiment.

Accepted Answer

theoretical average

Question 7

The amount of water in your bathtub is this type of random variable.

Accepted Answer

continuous

Question 8

To calculate the mean, or expected value, of a binomial distribution, use _______

Accepted Answer

np

Question 9

In a binomial experiment, q represents ________.

Accepted Answer

probability of failure

Question 10

The fish in the ocean represent a _________ random variable.

Accepted Answer

discrete

Question 11

To find the standard deviation of a binomial distribution, use ________.

Accepted Answer

square root(npq)

Question 12

In a binomial experiment, p + q = _____

Accepted Answer

one

Question 13

Who is your favorite teacher?

Accepted Answer

My Stats Teacher, Ms. Hill

Question 14

An outcome of a probability experiment.

Accepted Answer

random variable

Question 15

In a binomial experiment, p represents______.

Accepted Answer

probability of success

Question 16

The number of cars in the school parking lot is this type of random variable.

Accepted Answer

discrete

Question 17

This type of random variable has a finite or countable number of outcomes.

Accepted Answer

discrete

Question 18

The expected value of a discrete random variable is the _____ of the random variable.

Accepted Answer

mean

Questions 18