Mean, Median, Mode and 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 count of numbers.

Front

How do you calculate the mean of the numbers 1, 0, 1, 5, 0, 3, 4?

Back

Add the numbers: 1 + 0 + 1 + 5 + 0 + 3 + 4 = 14. Divide by the count (7): 14 / 7 = 2.

Front

What is the median?

Back

The median is the middle value in a set of numbers when they are arranged in order.

Front

What is the median of the set 10, 20, 30, 40, 50, 60, 70, 80, 90, 100?

Back

Arrange the numbers: 10, 20, 30, 40, 50, 60, 70, 80, 90, 100. The median is the average of 50 and 60, which is 55.

Front

What is the mode?

Back

The mode is the number that appears most frequently in a data set.

Front

What does it mean if the mode of a test score is 94?

Back

It means that more students received a score of 94 than any other score.

Front

What is the range?

Back

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

Front

What is the range of Roger's bowling scores: 127, 138, 142, 155, 165, 172, 193?

Back

Range = highest score (193) - lowest score (127) = 66.

Front

How do you find the median of an odd set of numbers?

Back

Arrange the numbers in order and select the middle number.

Front

How do you find the median of an even set of numbers?

Back

Arrange the numbers in order and calculate the average of the two middle numbers.