To calculate the mean, add up all the numbers and then divide by the number of values in the data set:
(81+85+82+93+85+84+95+87+88+91)/10 = 871/10 = 87.1 (mean)
To calculate the median, first arrange the numbers in increasing order:
81, 82, 84, 85, 85, 87, 88, 91, 93, 95
Since there are 10 numbers (an even amount), we'll find the average of the 5th and 6th numbers:
(85+87)/2 = 86 (median)
To calculate the mode, find the number that appears most frequently in the data set:
85 appears twice in the data set, while all other numbers appear only once. Therefore, the mode is 85.
So, for the given data set:
Mean = 87.1
Median = 86
Mode = 85
What are the mean, median, and mode of the data set? 81, 85, 82, 93, 85, 84, 95, 87, 88, 91
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