Chapter 6, Problem 86H

We flip a coin 100 times (n = 100) and note that It only comes up heads 20% (p 0.20) of the time. The mean and standard deviation for the number of times the coin lands on heads is p = 20 and a = 3 (vent the mean and standard deviation). Solve the following:

a. There is about a 68% chance that the number of heads will be somewhere between — and —.

b. There is about a _chance that the number of heads will be somewhere between 12 and 28.

c. There is about a ____ chance that the number of heads will be somewhere between eight and 32.