Mean, Median, Mode, Range

Front

What is the mean of a data set?

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

What is the median of a data set?

Back

The median is the middle value in a list of numbers. To find it, arrange the numbers in order and select the middle one. 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. A set may have one mode, more than one mode, or no mode at all.

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. It shows how spread out the numbers are.

Front

How do you calculate the mean of the data set: 7, 4, 9, 6, 4?

Back

Add the numbers: 7 + 4 + 9 + 6 + 4 = 30. Then divide by the count of numbers (5): 30 ÷ 5 = 6.

Front

How do you find the median of the data set: 7, 9, 7, 8, 3, 2, 3, 9, 6?

Back

First, arrange the numbers in order: 2, 3, 3, 6, 7, 7, 8, 9, 9. The median is the middle number, which is 7.

Front

How do you find the mode of the data set: 9, 6, 9, 3, 8?

Back

The mode is 9, as it appears most frequently in the data set.

Front

How do you calculate the range of the data set: 7, 1, 6, 9, 4, 6, 2?

Back

The highest number is 9 and the lowest is 1. The range is 9 - 1 = 8.

Front

How do you calculate the range of the data set: 8, 6, 2, 8, 6, 8, 6, 4?

Back

The highest number is 8 and the lowest is 2. The range is 8 - 2 = 6.

Front

What does it mean if a data set has no mode?

Back

It means that no number appears more than once in the data set.