Mean Median Mode Range

Front

What is the mean?

Back

The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the total count of numbers.

Front

How do you calculate the mean of 5, 5, 5, 5?

Back

Add the numbers: 5 + 5 + 5 + 5 = 20. Then divide by the count of numbers: 20 ÷ 4 = 5.

Front

What is the median?

Back

The median is the middle number in a sorted list of numbers. If there is an even number of values, the median is the average of the two middle numbers.

Front

How do you find the median of the numbers 36, 42, 28, 52, 48, 36, 31?

Back

First, sort the numbers: 28, 31, 36, 36, 42, 48, 52. The median is the middle number, which is 36.

Front

What is the mode?

Back

The mode is the number that occurs most frequently in a set of numbers.

Front

What is the mode of the numbers 1, 2, 2, 3, 4?

Back

The mode is 2, as it appears most frequently.

Front

What is the range?

Back

The range is the difference between the highest and lowest numbers in a set.

Front

How do you calculate the range of 5, 10, 15, 20?

Back

Subtract the smallest number from the largest: 20 - 5 = 15.

Front

What is the definition of the average?

Back

The average is another term for the mean, calculated by dividing the sum of values by the number of values.

Front

If Christian's grades are 100, 96, 96, 88, 70, and 100, what is the average grade?

Back

Add the grades: 100 + 96 + 96 + 88 + 70 + 100 = 550. Divide by 6: 550 ÷ 6 = 91.67, rounded to 92.