Question

Regression line Equation Calculation for Fitting the regression Line)
Using appropriate regression line find y when x=64 from the following data
x=65,66,67,69,71,72,70,65
y=67,68,69,68,70,70,69,70,70​

Answer 1

Answer:

Perfect questions for guys interested in maths..

2. The value of x + x(xx) when x = 2 is:

(a) 10, (b) 16, (c) 18, (d) 36, (e) 64

Solution:

x + x(xx)

Put the value of x = 2 in the above expression we get,

2 + 2(22)

= 2 + 2(2 × 2)

= 2 + 2(4)

= 2 + 8

= 10

Answer: (a)