Question

Consider this Data Set:

25.5 26 18.2
15.3 28.5 27
20.7 20.2 26.1
18.2 21.4 17.9
24.3 22.6 19.6
The mean of the data set is? and the sample proportion of numbers less than the mean is?
Please Help!!!!!!!!

Answer 1

25.5 + 26 + 18.2 + 15.3 + 28.5 + 27 + 20.7 + 20.2 + 26.1 + 18.2 + 21.4 + 17.9 + 24.3 + 22.6 + 19.6

Add this, then we divide by 15.

Answer 2

Mean is the sum of all the values divided by the number of values there are.

Answer 3

Tell me what you get @17jeisaac

Answer 4

@iGreen. 313.2?

Answer 5

No, actually I got 331.5

Now divide 331.5 / 15

@17jeisaac

Answer 6

@iGreen. 22.1

Answer 7

Yep, that's our answer.

Answer 8

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You can give medals by clicking 'Best Response'. @17jeisaac

Answer 9

@iGreen. But what's the sample proportion of numbers less than the mean?

Answer 10

Oh, the mean is 22.1, and there are 8 numbers lower than that.

There are a total of 15 numbers, so the proportion is 8/15

Answer 11

Thanks (: