Measures of Central Tendency

Front

What is the 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

How do you calculate the mean of the following numbers: 9, 8, 12, 6, 10?

Back

Add the numbers: 9 + 8 + 12 + 6 + 10 = 45. Then divide by 5 (the number of values): 45 / 5 = 9.

Front

What is the mode in a set of numbers?

Back

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

Front

Find the mode of the following numbers: 4, 8, 5, 17, 5, 4, 9, 5, 6, 82.

Back

The mode is 5, as it appears most frequently.

Front

What is the median in statistics?

Back

The median is the middle value in a data set when the numbers are arranged in order.

Front

How do you find the median of the following numbers: 3, 1, 2?

Back

Arrange the numbers in order: 1, 2, 3. The median is 2, the middle number.

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 two.

Front

What is the difference between mean, median, and mode?

Back

Mean is the average, median is the middle value, and mode is the most frequent value in a data set.

Front

What is the range in statistics?

Back

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

Front

Calculate the median of the following scores: 76, 85, 97, 83.

Back

Arrange the scores: 76, 83, 85, 97. The median is (83 + 85) / 2 = 84.