Lou wanted to determine how much his friends pay for video games. He surveyed them using the question How much did you pay for the last video game you bought? The responses were $29, $45, $50, $55, $34, $28, $35, $35, $45, $30, $34, and $55. How many more games cost between $30 and $39 than between $40 and $49?

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

- 4, v72, 32/5

i think this is right.

hope it