Mean:
To find the mean, add up all of the values in the dataset and divide by the number of values:
(10 + 17 + 11 + 24 + 12 + 7 + 15 + 17 + 20 + 5 + 11 + 21 + 16 + 17) ÷ 14 = 15.214...
The mean is approximately 15.21.
Median:
To find the median, first put the data in order by magnitude:
5, 7, 10, 11, 11, 12, 15, 16, 17, 17, 17, 20, 21, 24
Since there are an even number of values in the dataset, the median is the average of the two middle values, which are 15 and 16:
(15 + 16) ÷ 2 = 15.5
The median is 15.5.
Mode:
To find the mode, look for the value that appears most often in the dataset:
The number 17 appears three times, which is more than any other value. Therefore, the mode is 17.
Find the measures of center—mean, median, and mode—for the given dataset.
10, 17, 11, 24, 12, 7, 15, 17, 20, 5, 11, 21, 16, 17
1 answer