Find the mean, median and mode for the following: Mid value 15 20 25 30 35 40 45 50 55 Frequency 2 22 19 14 3 4 6 1 1

Expert Answers

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The mode is the most common number, which is the number with the highest frequency - that is 20.

The median is the middle number.  There are a total of 72 numbers, so the median is the average of the 36th and 37th numbers, which is 25.

The mean is the weighted average of the numbers.

`{2(15)+22(20)+19(25)+14(30)+3(35)+4(40)+6(45)+1(50)+1(55)}/72 approx 27.8`

The mean is 27.8, the median is 25 and the mode is 20.

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