Question

Given the following data, find the following:
Round your answers to 2 decimal places as needed

97	89
19	77
50	81
53	62
80	70
52	55
3	85

Mean=

Median=

Range =

Sample Standard Deviation=

Answer 1

Ans:

Sorted data:

3	70
19	77
50	80
52	81
53	85
55	89
62	97

1)sum=873

n=14

mean=873/14=62.36

2)median=(62+70)/2=66

3)Range=maximum-minium=97-3=94

4)sample standard deviation

	xi	(xi-62.357)^2
1	97	1200.137
2	19	1879.829
3	50	152.695
4	53	87.553
5	80	311.275
6	52	107.267
7	3	3523.253
8	89	709.849
9	77	214.417
10	81	347.561
11	62	0.127
12	70	58.415
13	55	54.125
14	85	512.705
Total=	873	9159.214
mean=	62.357	26.543	std. dev.

sample standard deviation=sqrt(9159.214/13)=26.54