5
8. Verify that:
5
(i)
x-710 _-710
X Х
172 113 113 17
() 7x + 3) = x + 1
9. Evaluate:
13 7
X Х
21 -260
Answers
Answered by
0
Answer:
X
14
12
13
14
16
10
13
12
Y
14
23
17
24
18
25
23
24
XY
196
276
221
336
288
250
299
288
X2
196
144
169
196
256
100
169
144
∑X=104 ⇒X_=8104=13
∑Y=168 ⇒Y_=8168=21
∑XY=2154
∑X2=1374
Regression line if of form y=a+bx
b=S x x
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