TSIA MATH: Mean, Median, Mode, and Range Practice

Front

What is the mean of a data set?

Back

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

Front

What is the median of a data set?

Back

The median is the middle value of a data set when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the mode of a data set?

Back

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

Front

What is the range of a data set?

Back

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

Front

How do you find the mean of the data set 4, 3, 15, 11, 3, 8, 7, 5?

Back

Add all the numbers (4 + 3 + 15 + 11 + 3 + 8 + 7 + 5 = 56) and divide by the count of numbers (8). Mean = 56 / 8 = 7.

Front

How do you find the median of the data set 4, 3, 15, 11, 3, 8, 7, 5?

Back

First, sort the data: 3, 3, 4, 5, 7, 8, 11, 15. The median is the average of the two middle numbers (5 and 7). Median = (5 + 7) / 2 = 6.

Front

How do you find the mode of the data set 12, 10, 10, 10, 13, 12, 11, 13, 10?

Back

The mode is 10, as it appears most frequently (four times) in the data set.

Front

What is the difference between the highest and lowest values in the data set 155, 165, 138, 172, 127, 193, 142?

Back

The range is 193 - 127 = 66.

Front

True or False: To find the median, the data must be sorted from least to greatest first.

Back

True.

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all values) / (Number of values).