The total number of people are .
Here and
.
Find mean .
.
Find standard deviation .
.
Find the probability between and
people.
The probability is .
Find the corresponding values for
and
.
.
and
and
.
Using score table:
The area for is
.
value is
.
The probability of and
people saw more than
movies in a movie theater is
.
The probability of and
people saw more than
movies in a movie theater is
.
The probability of and
people saw more than
movies in a movie theater is
.