Suppose that a statistics teacher ask a few student the number of hours they studied per week doing a week and the grade on the exam. He put it in the following table. Hours studying 1/21121/234 Test Grade707982896592100 Determine the correlation coefficient. (round-off to 4 decimal place)

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step-by-step explanation:

it is x equals 3   plese mark me really need it

step-by-step explanation:

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)