Please help! A research firm has determined that 80% of telephone respondents will agree to answer an opinion poll. If 20 people are contacted, what is the probability that exactly 14 people agree to be polled?
A.) 8.4%
B.) 10.9%
C.) 12.4%
D.) 20.3%

b

step-by-step explanation:

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.