One Variable Statistics Review

Front

What is the range of a data set?

Back

The range is the difference between the maximum and minimum values in a data set.

Front

How do you find the mode of a data set?

Back

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

Front

What is the formula to calculate the mean?

Back

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

Front

How do you find the median of a data set?

Back

To find the median, arrange the numbers in order and identify the middle value. If there is an even number of values, the median is the average of the two middle values.

Front

What is the maximum value in a data set?

Back

The maximum value is the largest number in the data set.

Front

What is the minimum value in a data set?

Back

The minimum value is the smallest number in the data set.

Front

What does it mean if a data set has no mode?

Back

It means that no number appears more than once in the data set.

Front

How do you calculate the range of the following data set: 63, 71, 65, 66, 87, 53?

Back

Range = 87 - 53 = 34.

Front

What is the mode of the following data set: 7, 9, 10, 6, 6, 10, 9, 10?

Back

The mode is 10.

Front

Calculate the mean of the following numbers: 12, 14, 2, 9, 2, 66, 12, 10.

Back

Mean = (12 + 14 + 2 + 9 + 2 + 66 + 12 + 10) / 8 = 15.875.