Probability Distribution

Question 1

If I want to find the probability of getting at least 2 cars, what formula would I use?

Accepted Answer

P(x≥2)

Question 2

If I want to find the probability of getting exactly 2 cars, what formula do I use?

Accepted Answer

P(x = 2)

Question 3

Which is a binomial experiment?

Accepted Answer

Flipping a coin

Question 4

If you want to find the binomial probability of getting more than 3 use

Accepted Answer

1-binomcdf(n,p,3)

Question 5

What are the requirement for a probability distribution?

Accepted Answer

All numbers must be between 0 and 1, numbers must sum to 1

Question 6

If you are finding a binomial probability of exactly equal use

Accepted Answer

binompdf

Question 7

Is the following variable discrete or continuous? The time it takes you to answer this question

Accepted Answer

Continuous

Question 8

Is the following a binomial experiment? Count the number of boys and girls in various classes.

Accepted Answer

not binomial

Question 9

If I want to find the probability of getting at most 2 cars, what formula would I use?

Accepted Answer

P(x≤2)

Question 10

Is the following variable discrete or continuous? The cost a your last Starbucks purchase

Accepted Answer

Discrete

Question 11

Expected value is the same as the

Accepted Answer

Mean

Question 12

If you want to find the binomial probability of getting at least 3 use

Accepted Answer

1-binomcdf(n,p,2)

Question 13

If you want to find the binomial probability of getting at most 3 use

Accepted Answer

binomcdf(n,p,3)

Question 14

Given a random variable X between 0 and 3, if P(0) = .15, P(1) = .2, P(2)= .3, P(3) =?

Accepted Answer

.35

Question 15

Is the following variable discrete or continuous? Amount of gasoline needed to go to the beach

Accepted Answer

Continuous

Question 16

What are the requirement for a probability distribution?

Accepted Answer

numbers must sum to 1, All numbers must be between 0 and 1

Questions 16