In an area of russia records were kept on the relationship between the rainfall (in inches) and the yield of wheat (bushels per acre). the data for a 9 year period is as follows:

rain fall, x 13.1 11.4 16.0 15.1 21.4 12.9 9.6 18.2 18.6
yield, y 48.5 44.2 56.8 80.4 47.2 29.9 74.0 74.0 76.8
the equation of the line of least squares is given as ŷ = -9.12+ 4.38x. what would be the expected number of inches of rain if the yield is 60 bushels of wheat per acre?
(a) 11.62 (b) 64.74 c) 253.68 (d) 15.78 ans: c plug y= 60 and solve for x.

Option d.

Step-by-step explanation:

The equation of the line of least squares is given as

where is the yield of wheat (bushels per acre) and x is the rainfall (in inches).

We need to find the expected number of inches of rain if the yield is 60 bushels of wheat per acre.

Substitute in the given equation.

Add 9.12 on both sides.

Divide both sides by 4.38.

The expected number of inches of rain is 15.78.

Therefore, the correct option is d.

answer: 16

step-by-step explanation: first you would add 6+6 which equals 12 then add 2+2 which equals 4. then add 12 + 4 which is 16.

hope this ^_^

answer: (yeees, you need a poet.)

//blooming serenity//

beautiful in the morning

mysterious at night

wonderous nature souring

with all it's mystical might

the flower that blooms

to the fox that looms

nocturnal creatures

with various features

a blooming flower soon in sight

as a new little hatchling fears to take flight  

afraid to leave it's calming nest,

but dear little bird, mother knows best

as sure as there are stars in the sky,

life is not about who, where what, when or why-

it's the journey that follows

adventures we swallow

of   nature's deep wonders,

natural disasters and storm's thunders.

blooming serenity

life and nature, truly is heavenly.

-kerstien lehman

step-by-step explanation: