Binomial Geometric Poisson

If you want a certain number of successes in a set amount of trials, use the ???? method.

• Geometric

• Binomial

• Normal

• Poisson

If you want to know how many trials you will need before your first success, use the ???? model.

• Geometric

• Binomial

• Normal

• Poisson

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 exactly 2 of the first 20 blood donors have Type B blood? 

• 0.316

• 0.282

• 0.001

• 0.620

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

• 0.00983

• 0.167

• 0.25

• 0.0000756

If you want to know how many trials you will need before your first success, use the ????? model.

• Geometric

• Binomial

• Normal

• Calculator

Multiply: (x + 7)(x + 9)

Mathematical Equivalence

ON

If we want to calculate the probability of rolling a 6 for the first time on the 6^th roll of a die, would we use the geometric or the binomial distribution?

• geometric

• binomial

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?

• 0.551%

• 0.00551%

• 5.51%

• 0.0258%

Out of the whole population in the US, 13% are left-handed. In a sample of 30 randomly selected people, what is the probability that the 7 of them are left-handed?

• .0519

• .966

• .034

• 0.00229

Which of the following is false about binomial probabilities?

• Their distributions are approximately symmetric.

• The number of trials must be fixed.

• Events musts be independent.

• The probability of success must be 0.50