Central Tendency

Mode

Number or Numbers that occur most often

Mean

Sum of the data divided by the number of items in the data set.

Mode

The average wait times for 10 different rides at an amusement park are 65, 21, 17, 52, 25, 17, 11, 22, 60, and 44 minutes. Which measure of central tendency (mean, median, mode) would the amusement park advertise to show that the wait times for its rides are short?

Median

The middle number of the data ordered from least to greatest, or the mean of the middle two numbers.

Range

The smallest number subtracted from the largest number in the data set.

7

What is the mean of the following numbers (rounded to the nearest tenth, if needed)? 15, 5, 3, 3, 9

6.3

What is the mean of the following numbers (rounded to the nearest tenth, if needed)? 3, 5, 6, 7, 9, 6, 8

3.7

What is the mean of the following numbers (rounded to the nearest tenth, if needed)? 8, 1, 2, 6, 1, 4

3

What is the median of the following data? 8, 1, 2, 6, 1, 4

5

What is the median of the following numbers? 15, 5, 3, 3, 9

6

What is the median of the following numbers? 3, 5, 6, 7, 9, 6, 8

None

What is the mode of the following numbers? 115, 128, 164, 116, 151, 114, 111, 110

3

What is the mode of the following numbers? 15, 5, 3, 3, 9

6

What is the mode of the following numbers? 3, 5, 6, 7, 9, 6, 8

1

What is the mode of the following numbers? 8, 1, 2, 6, 1, 4

16

What is the range of the following numbers? 14, 15, 10, 18, 11, 21, 19, 24, 22, 26

10.5

What is the range of the following numbers? 19, 17, 24.5, 27.5, 20.3

9.5

What is the range of the following numbers? 31.4, 32.4, 29.8, 27.6, 37.1