Determine the probability of making at least 7 free throws out of 10 attempts, where the chance of making any single free throw is .65.

Hint:Hint: This is a Binomial distribution (please see lecture 5.2 Example of marble for the reason).Let X=number of chance making single free throw out of 10, we are asking for P(X>=7), with P=0.65 and n=10.

100 people where sampled and their heights were recorded, it was discovered the mean height was 5 feet and 6.3 inches with a standard deviation of 3.75 inches.What is the probability of someone being shorter than 5 feet and 1.5 inches tall?

Hint: Normal distribution with mean=5 feet and 6.3 inches and standard deviation of 3.75. Please see lecture 5.3 example of hours people spend on cell phone.