Measures of Central Tendency

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

What is the Median?

Back

The median is the middle value in a set of numbers when they 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?

Back

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

Front

What is the Range?

Back

The range is the difference between the largest and smallest numbers in a data set. It is calculated by subtracting the smallest number from the largest number.

Front

How does adding a constant to each data point affect the Mean?

Back

Adding a constant to each data point increases the mean by that constant.

Front

How does adding a constant to each data point affect the Median?

Back

Adding a constant to each data point increases the median by that constant.

Front

How does adding a constant to each data point affect the Mode?

Back

Adding a constant to each data point increases the mode by that constant.

Front

How does adding a constant to each data point affect the Range?

Back

The range remains unchanged when a constant is added to each data point.

Front

Calculate the median for the data set: 22, 32, 44, 11, 5, 28, 19, 30.

Back

Median = 25

Front

Calculate the median for the data set: 100, 55, 98, 140, 101, 98, 53, 57, 70.

Back

Median = 98