Question

Calculate the requested statistics for the following sample data:

4.9, 4.9, 5.2, 5.4

Give the answer to the proper number of decimal places outlined below •.

(a) Mean

(b) Standard deviation

Answer 1

a).necessary calculation for mean:-

4.9

4.9

5.2

5.4

sum=20.4

so we have,

[ n= number of observation = 4]

b).necessary calculation table for standard deviation:-

4.9	0.04
4.9	0.04
5.2	0.01
5.4	0.09
	sum=0.18

so, the sample standard deviation be:-

*** i have rounded off the answer to 4 decimal places..if any other decimal places is needed please mention it in the comment box.

hence the table containing mean and standard deviation be:-

MEAN	5.1
STANDARD DEVIATION	0.2449

*** if you face any trouble to understand the answer to the problem please mention it in the comment box.if you are satisfied, please give me a LIKE if possible.