Question

the scatter plot shows the time spent watching tv and the time spent doing homework by each of 21 students last week. also show the data. fill in the blanks below. (a) for these 21 students, as the time spent watching tv increases, the time spent doing homework tends to select (b) for these 21 students, there is select correlation between time spent watching tv and time spent doing homework. (c) using the line of best fit, we would predict that a student watching 15 hours of tv would do homework for approximately select

Explanation:

Step1: Analyze scatter - plot trend

As the x - value (time watching TV) increases, the y - value (time doing homework) decreases.

Step2: Determine correlation type

Since the variables move in opposite directions, it is a negative correlation.

Step3: Estimate value from line of best - fit

Locate x = 15 on the x - axis of the scatter - plot, then find the corresponding y - value on the line of best - fit. By visual inspection, when x = 15, y is approximately 14.

Answer:

(a) Decrease
(b) A negative
(c) 14 hours