Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B2

Chapter

Index Numbers and Time Based Data

Question:

For a given data of 5 observations $∑y= 311, ∑x^2 = 10$ and $∑xy = 90.$ The equation of the trend line

Options:

$y_t = 62.2+9x$

$y_t = 9+62.2x$

$y_t = 31.1+18x$

$y_t = 18+31.1x$

Correct Answer:

$y_t = 62.2+9x$