Umi’s test grades For this semester are in the list shown the mean of her test grades is 82.4. 86 93 90 85 42 91 90 If the lowest Test grade is estimated which statement about the new mean is true

f

step-by-step explanation:

f

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33