Exam 33: Averages

The mean of a set of data is found by adding the numbers in a set and dividing by the number of numbers in the set.

A class of drafting students made the following scores on their first exam: 98, 90, 88, 88, 84, 80, 75, 75, 72, and 68. What is the average score on this exam?

Find the average of 66, 59, 73, 65, and 62.

Another name for the mean of a set of numbers is called the median..

Five CAD drafters receive hourly wages of $28.88, $27.75, $32.34, $26.75, and $28.58, respectively. What is their average hourly pay?

A civil drafter spent the following amounts for equipment during the year: $91.25, $93.34, $83.53, and $55.60. What is the average amount of money spent by the drafter?

On a drafting test, the scores achieved are as follows: 4 students, 82%; 5 students, 77%; 4 students, 88%; 5 students, 84%; 1 student, 99%, and 1 student, 58%. What was the average score on the test? Round the answer to the nearest hundredth as necessary.

A CAD drafter completes 32 drawings on Monday, 38 on Tuesday, 27 on Wednesday, and 29 on Thursday. How many must be completed on Friday to average 30 drawings per day?

Over a 5-day period, the following work-related miles are logged: 51, 49, 48, 42, and 38. Find the average number of miles traveled per day.

An architect designs a building with five different types of doors. The doors cost $175.50, $298.75, $1,055.25, $650.45, and $302.65. Find the average cost per door.