Measures of Central Tendency Review

Front

What is the median in a data set?

Back

The median is the middle value when the data set is ordered from least to greatest. If there are two middle numbers, the median is the average of those two numbers.

Front

How do you find the mean of a data set?

Back

To find the mean, add all the numbers in the data set together and then divide by the total number of values.

Front

What is the mode in 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 the data set.

Front

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

Back

Add the two middle numbers together and divide by two.

Front

If a data set is: 3, 5, 7, 9, 11, 8, 3, what is the median?

Back

The median is 7.

Front

If a data set is: 36, 42, 28, 52, 48, 36, 31, what is the median?

Back

The median is 36.

Front

What is the mean of the scores: 10, 16, 7?

Back

The mean is 11 points.

Front

What do you do if there is no mode in a data set?

Back

If no number repeats, the data set has no mode.

Front

What is the first step in finding the median?

Back

Order the data set from least to greatest.