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Question

Find the mean, median, and mode of the set of data.

10, 11, 4, 7, 12, 11, 16, 6, 9, 15

Answer 1

To find the mean, add up all the numbers and divide by how many numbers there are.

Mean: (10 + 11 + 4 + 7 + 12 + 11 + 16 + 6 + 9 + 15) / 10
Mean: 11.1

To find the median, first order the numbers from least to greatest:

4, 6, 7, 9, 10, 11, 11, 12, 15, 16

Since there are an even number of numbers in the set, the median is the average of the two middle numbers:

Median: (10 + 11) / 2
Median: 10.5

To find the mode, identify the number that appears most frequently:

Mode: 11

Therefore, the mean is 11.1, the median is 10.5, and the mode is 11.