Binomial and Normal

Find the standard deviation of a binomial distribution with n=50 and p=0.4 (Round to the nearest tenth)

• 4.2

• 3.5

• 12.0

• 6.2

Which of the following is NOT an assumption of the Binomial distribution?

• All trials must be independent.

• Each trial has only two outcomes: success or failure

• All trials are dependent on each other.

• The number of successes in the trials is counted.

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 less than 2 of the first 10 blood donors has Type B blood? 

• 0.088

• 0.697

• 0.214

• 0.303 

Find the mean of a binomial distribution with n=50 and p=0.4

• 50

• 4

• 20

• 10

What does the n stand for in the binomial probability formula?

• Number of trials

• Number of Successes

• Probability of Successes

• Probability of Failures

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

Mathematical Equivalence

ON

What does the p stand for in the binomial probability formula?

• Number of trials

• Number of Successes

• Probability of Successes

• Probability of Failures

What does the (1-p) stand for in the binomial probability formula?

• Number of trials

• Number of Successes

• Probability of Successes

• Probability of Failures

True or False:

exactly = binompdf

at most = binomcdf

at least = binomcdf

• True

• False