Question

In: Statistics and Probability

Compute the mean and variance for the sample data (Formulas, plug in numbers, calculations required): 16...

Compute the mean and variance for the sample data (Formulas, plug in numbers, calculations required):

16

9

8

13

19

12

10

15

17

20

	Formula	Plug in numbers	Final answer
Mean
Variance
Standard Deviation

Expert Solution

	Formula	Plug in numbers	Final answer
Mean
Variance
Standard Deviation

Let us do the calculations below

Create the following table.

data	data-mean	(data - mean)²
16	2.1	4.41
9	-4.9	24.01
8	-5.9	34.81
13	-0.9	0.81
19	5.1	26.01
12	-1.9	3.61
10	-3.9	15.21
15	1.1	1.21
17	3.1	9.61
20	6.1	37.21

Find the sum of numbers in the last column to get.

So Variance is

And standard deviation is

orchestra answered 2 years ago

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