Suppose the scores on a history quiz are normally distributed with a mean of 73 and a standard deviation of 4. which group describes 16% of the population of history quiz scores?

a. scores below 65

b. scores below 75

c. scores above 77

d. scores above 81

The total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?