What is the interquartile range (IQR) for the data set? 14, 15, 17, 19, 20, 23, 26, 30, 32
20
O
12
O
16
o
28

29.5977692753

step-by-step explanation:

the answer is b.

step-by-step explanation:

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