month
1
2
3
4
total cost $'000
57.5
37.5
45.0
60.0
Quantity produced $'000
1.25
1.00
1.50
2.00
gradient of regression line is 17.14
what is the value of a??
A 25.36
B 48.56
C 74.64
D 101.45
i got C as an answer but my teacher said it's A..
sir, what is the answer??
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regression analysis
12y ago#1The correct answer is A.
y is the cost, so total y = 200
x is the quantity, so total x = 5.75
n = 4
b = 17.14
If you put those figures into the formula for a, then the value of a is 25.36
thank you sir :)
God bless U :)
instead of subtracting, i made addition :P
Attention to details :D
12y ago#3You are welcome :-)
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