Based on a smartphone survey, assume that
50
50% of adults with smartphones use them in theaters. In a separate survey of
238
238 adults with smartphones, it is found that
102
102 use them in theaters.
a. If the
50
50% rate is correct, find the probability of getting
102
102 or fewer smartphone owners who use them in theaters.
b. Is the result of
102
102 significantly low?