p = 3/4, the probability that those under the age of 35 ate pizza for breakfast.
Therefore,
q = 1 - p = 1/4, the probability of those who did not eat pizza for breakfast.
n = 20, the sample size
The probability that exactly 16 of the 20 selected have eaten pizza for breakfast is
P(16 of 20) = ₂₀C₁₆ p¹⁶ q⁴
= 4845*(3/4)¹⁶*(1/4)⁴
= 0.1897
Answer: 0.19 (or 19%)
