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

Mean = (9 + 8 + 12 + 6 + 10) / 5 = 9.

Front

What is the median in statistics?

Back

The median is the middle value in a list of numbers sorted in ascending order.

Front

How do you find the median of the following numbers: 3, 5, 7, 9, 11, 8, 3?

Back

First, sort the numbers: 3, 3, 5, 7, 8, 9, 11. The median is 7.

Front

What is the mode in statistics?

Back

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

Front

What is the mode of the following scores: 88, 85, 72, 68, 84, 93, 84, 78, 93, 81?

Back

The mode is 93 and 84, as both appear most frequently.

Front

What is the 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 range of the following numbers: 3, 5, 7, 9, 11, 8, 3?

Back

Range = highest value (11) - lowest value (3) = 8.

Front

What is the formula for calculating the mean?

Back

Mean = (Sum of all values) / (Number of values).

Front

What is the median of the following temperatures: 48°F, 65°F, 60°F, 45°F, 54°F, 64°F, 70°F, 45°F?

Back

First, sort the temperatures: 45°F, 45°F, 48°F, 54°F, 60°F, 64°F, 65°F, 70°F. The median is 57°F.