Geometric and Binomial Distributions

You flip a coin 20 times. What is the probability of getting exactly 3 heads?

• BinomPDF

• BinomCDF

• GeometPDF

• GeometCDF

You flip a coin until you get a certain amount of successes. What is the probability of getting exactly 3 heads?

• BinomPDF

• BinomCDF

• GeometPDF

• GeometCDF

What function would you use to solve this question: You flip a coin 20 times. What is the probability of getting at least 10 heads?

• 1 - BinomCDF and 1 less the x value

• 1 - BinomCDF

• GeometPDF

• 1 - GeometCDF

What function would you use to solve this question: You flip a coin until you get a certain amount of successes. What is the probability of getting more than 10 heads?

• GeometCDF

• BinomCDF

• GeometPDF

• 1 - GeometCDF

What function would you use to solve this question:

You flip a coin 20 times. What is the probability of getting at most 4 heads?

• 1 - BinomCDF and 1 less the x value

• BinomPDF

• GeometPDF

• BinomCDF

What function would you use to solve this question: You flip a coin 100 times. What is the probability of getting at least 50 heads?

• 1 - BinomCDF and 1 less the x value

• 1 - BinomCDF

• GeometPDF

• 1 - GeometCDF

You flip a coin until you get a certain amount of successes. What is the probability of getting less than 2 heads?

• BinomPDF

• BinomCDF

• GeometPDF

• GeometCDF

The American Red Cross says that about 11% of the U.S. population has Type B blood. A blood drive is being held at your school. What is the probability that the tenth blood donor is the first donor with Type B blood?

• approximately 0.00

• 0.316

• 0.0385 

• 0.279

A test consists of 10 multiple choice questions with five choices for each question.  As an experiment, you GUESS on each and every answer without even reading the questions. 
What is the probability of getting exactly 6 questions correct on this test?

• 0.6%

• 0.00001%

• 0.0064%

• 0.0002%

When rolling a fair die 100 times, what is the probability of rolling a "4"exactly 25 times?

• 0.010

• 0.167

• 0.25

• 0.021