Probability Distribution Review

The heights of the children at a summer camp are normally distributed with a mean of 54 inches and a standard deviation of 2.4 inches. What is the height of a child with a z-score of 1.5? Give your answer rounded to the nearest tenth. (Use the drawing tools to show your work.)

The probability distribution shows the probability owning multiple vehicles among 100 families polled. What is the probability that a family has more than 3 cars among the 100 families polled?

• 0.05

• 0.1

• 2/5

What is the correct probability for P(1) as a decimal?

• 0.15

• 30

• 200

A veterinarian is using a new vaccine for cats. The vaccine has a 10% probability of causing side effects. In which distributions does the variable X have a binomial distribution? Select each correct answer.

• When the vaccine is given to six cats, X is the number of cats that do not have any side effects.

• When the vaccine is given to three cats, X is the number of cats that have side effects.

• When the vaccine is given to multiple cats, X is the number of cats that receive the vaccine until one of them has side effects.

• When the vaccine is given to multiple cats, X is the total number of cats that receive the vaccine.

Use the probability distribution graph to answer the question. If P (X ≥ a)=0.5, what is the value of a?

It describes all the possible values and probabilities for a random variable within a given range.

• Random Variable

• Probability Distribution

• Tree Diagram

• Listing Method

What method is this?

• Tree Diagram

• Listing Method

Set of possible outcomes that is countable

• Listing Method

• Discrete

• Continuous

• Tree diagram

What type of random variable is this: Number of patients in a doctor's Surgery

• Discrete

• Continuous

What type of random variable is this:

The time required to finish a test

• Discrete

• Continuous