John runs a computer software store. Yesterday he counted 127 people who walked by the store, 58 of whom came into the store. Of the 58, only 25 bought something in the store. a) Estimate the...

John runs a computer software store. Yesterday he counted 127 people who walked by the store, 58 of whom came into the store. Of the 58, only 25 bought something in the store.
a) Estimate the probability that a person who walked by the store will enter the store.

P (E) =