Question

2.4.80-T : Question Help Calculate the range, variance, and standard deviation for the following samples. a, 6, 2, 3, 0, 3 b. 6,1,4,4,7,0,7 C.1,-1,2. 4, 3, 5, 5, 2,4 d. 0, 4, 0, 0, -2,2, -4, 2, 0, -2,2, -2, 0, -5, -4, -2,0,2 a. The range is Type an integer or a decimal. Do not round.)

Answer 1

a) From the given data

S.NO.	X	(X-Xbar)^2
1	6	10.24
2	2	0.64
3	3	0.04
4	0	7.84
5	3	0.04
Total:	14	18.8

b) From the given data

S.NO.	X	(X-Xbar)^2
1	6	3.4488
2	1	9.8778
3	4	0.0204
4	4	0.0204
5	7	8.163
6	0	17.1636
7	7	8.163
Total:	29	46.857

c) From the given data

S.NO.	X	(X-Xbar)^2
1	1	3.1606
2	-1	14.2718
3	2	0.605
4	4	1.4938
5	3	0.0494
6	5	4.9382
7	5	4.9382
8	2	0.605
9	4	1.4938
Total:	25	31.5558

d) From the given data

S.NO.	X	(X-Xbar)^2
1	0	0.25
2	4	20.25
3	0	0.25
4	0	0.25
5	-2	2.25
6	2	6.25
7	-4	12.25
8	2	6.25
9	0	0.25
10	-2	2.25
11	2	6.25
12	-2	2.25
13	0	0.25
14	-5	20.25
15	-4	12.25
16	-2	2.25
17	0	0.25
18	2	6.25
Total:	-9	100.5