Assignment Solution MGT302

Assignment Solution MGT302

Question NO: 1

From first date: Suppose Prices = X

Here n = 5

X : 8, 13,18,23,30 So ∑X=92

X^2= 64,169,324,529,900 so ∑X^2= 1986

For 2^nd data:

Here n = 5

Suppose Life in hours: Y

Y = 130,150,180,250,350 so ∑Y = 940

Y^2= 16900,22500,32400,62500,122500 so ∑Y^2 = 256800

Variations in the prices are higher than the Life in hours.

Question NO: 2

Solution:

Compute coefficient of Correlation.

Students	X	Y	XY	X^2	Y^2
1	1	60	60	1	3600
2	2	65	130	4	4225
3	2	70	140	4	4900
4	4	81	324	16	6561
5	5	85	425	25	7225
6	7	89	623	49	7921
7	7	95	665	49	9025
8	8	80	640	64	6400
9	9	82	738	81	6724
10	9	92	828	81	8464
Sum = 55	∑X=54	∑Y=799	∑XY=4573	∑X^2=374	∑Y^2=65045

From the above calculated results we can say that here is strong relation (co-relation) among the number of hours and grades and this co-relation is positive co-relation.