The total number of people are
.
Here
and
.
Find mean
.


.
Find standard deviation
.


.
Find the probability that people fewer than
plan to watch world cup.
The probability is
.
Rewrite the problem with continuity factor included.
\
.
Find the corresponding
-value for
.


Find the area left side of
.
Using
-score table:
The area for
is
.
The probability of fewer than
people plan to watch the world cup
.
The probability of fewer than
people plan to watch the world cup
.