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= 20 and= 4

(verify the mean and standard deviation). Solve the following. (Hint: make a sketch.)

(a) There is about a 68% chance that the number of heads will be somewhere between______(smaller value) and_______(larger value).

(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 8 and 32.

(d) There is about a________% chance that the number of heads will be somewhere between 12 and 16.