Practice Mean as Fair Share in Statistics
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
The mean (average) represents what each person would get if the total were divided equally among everyone.
Imagine 3 friends have 2, 4, and 9 candies. If they pool all candies (15 total) and share equally, each gets 5. That's the mean! It's the 'fair share' - what everyone would have if things were perfectly even.
Example 1
easyFive friends have 3, 7, 5, 10, and 5 sweets respectively. If they share all the sweets equally, how many does each person get?
Example 2
mediumA student scores 72, 85, 90, and 69 on four tests. What score does she need on a fifth test to have a mean of 80?
Example 3
easyFour boxes contain 12, 8, 14, and 6 apples. Find the mean number of apples per box.
Example 4
easyThree jars hold 9, 12, and 6 marbles. How many marbles must move from the second jar to the third jar so that all three jars have the same number?