The admissions office of a college wants to determine whether there is a relationship between IQ scores x and grade-point averages y after the first year of school. An equation that models the data obtained by the admissions office is
Estimate the values of x that predict a grade-point average of at least 3.5. (Simplify your answer completely. Round your answer to the nearest whole number.)
The given equation modeling the relationship between IQ score and grade point averages is as follows
y = 0.069x − 4.755 …(1)
Where y represents grade point averages
And x represents IQ score
We need to find value of x for y = 3.5. So substituting y = 3.5 in equation (1), we get
3.5 = 0.069x − 4.755
On simplifying the above equation
0.069x = 3.5 + 4.755
0.069x = 8.255
x = 8.255/0.069
x = 119.63
So the next whole numbe...
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