Mean, Median, Mode, & Range

Front

What is the definition of range in a data set?

Back

The range is the difference between the largest and smallest number in the data set.

Front

What does it mean if a score is the mode in a data set?

Back

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

Front

How do you calculate the mean of a set of numbers?

Back

To find the mean, add up all the numbers in the set and divide by the number of items in the set.

Front

What is the mean of the following data set: 70, 80, 90?

Back

The mean is 80.

Front

How do you find the average of a set of heights?

Back

Add all the heights together and divide by the number of heights.

Front

What is the mode of the following set of numbers: 1, 2, 2, 3, 4?

Back

The mode is 2, as it appears most frequently.

Front

If the range of a data set is 15, what does this indicate?

Back

It indicates that the difference between the largest and smallest values in the data set is 15.

Front

What is the median in a data set?

Back

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

Front

How do you find the median of the following numbers: 3, 1, 4, 2?

Back

First, arrange the numbers in order (1, 2, 3, 4). The median is the average of the two middle numbers, which is (2+3)/2 = 2.5.

Front

What is the formula for calculating the mean?

Back

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