Binomial Probability Requirements

What are the four requirements for a setting to follow the binomial probability distribution.

• two possible outcomes

• fixed probability

• independent

• infinite trials

The probabilities in the distribution must equal 1.

• True

• False

A binomial random variable is

• Continuous

• Discrete

• Poisson

• Geometric

Your calculator can only do binomcdf with ____, so all inequalities (if you use your calculator) must be converted to that inequality.

• ≤

• =

• <

• >

A blood bank knows that only about 10% of its regular donors have type B blood. What is the probability that you will find more than 13 people with type B blood?

• 0.25

• 0.28

• 0.03

You are taking a multiple choice test with 40 questions on it. Each question has 4 answer choices. What is the probability that you will get at no more than 15 correct?

• 0.50

• 0.05

• 0.97

In Vietnam, the probability of rain is 70%.  Find the probability of it raining at most 2 days in a week.

• .9712

• 0.0253

• .0287

• .2988

• 0.0351

An algebra 2 test has 5 multiple choice questions with four choices with one correct answer each. If we just randomly guess on each of the 5 questions, what is the probability that you get at least 1 question correct?

• 0.2373

• 0.3955

• 0.7627

• 0.6045

In Vietnam, the probability of rain is 70%.  Find the probability of it raining at most 2 days in a week.

• .9712

• 0.0253

• .0287

• .2988

• 0.0351

In Vietnam, the probability of rain is 70%.  Find the probability of it raining at most 4 days in a week.

• .9712

• .0250

• .0287

• .2988

• 0.353