Question

In a random sample of 600 college graduates, 18 achieved the highest honor, Summa Laude. An estimate for the population proportion of graduates who achieved Summa Laude is: [A] 0.24      [B]    0.06   [C]    0.03   [D]    0.04

The number of seats in various classrooms on campus has a mean of 31 with a standard deviation of 4. What percent of the classrooms have between 23 and 39 seats?

[A] at least 99.7% [B] at least 89%   [C] at most 89%   [D] at least 75%

Answer 1