Mean, Median, Mode & Range

Front

What is the definition of Mean in statistics?

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

What is the definition of Median in statistics?

Back

The Median is the middle value of a data set when the numbers are arranged in order. If there are two middle numbers, the median is the average of those two numbers.

Front

What is the definition of Mode in statistics?

Back

The Mode is the number that appears most frequently in a data set. A data set can have one mode, more than one mode, or no mode at all.

Front

What is the definition of Range in statistics?

Back

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

Front

How do you calculate the Mean of the following numbers: 1, 0, 1, 5, 0, 3, 4?

Back

Add all the numbers: 1 + 0 + 1 + 5 + 0 + 3 + 4 = 14. Then divide by the count of numbers (7): 14 ÷ 7 = 2.

Front

How do you find the Median of the following numbers: 158, 172, 164, 164, 167, 159?

Back

First, arrange the numbers in order: 158, 159, 164, 164, 167, 172. Since there are two middle numbers (164 and 164), the Median is 164.

Front

Can a data set have more than one Mode?

Back

Yes, a data set can have more than one mode if multiple numbers appear with the same highest frequency.

Front

What is the Range of the heights: 158cm, 172cm, 164cm, 164cm, 167cm, 159cm?

Back

The highest value is 172cm and the lowest is 158cm. Range = 172 - 158 = 14cm.

Front

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

Back

The highest score is 193 and the lowest is 127. Range = 193 - 127 = 66.

Front

What do you do if there are two middle numbers when finding the Median?

Back

Add the two middle numbers together and divide by 2.