the scatter plot shows the time spent watching tv and the time spent doing homework by each of 25 students…

the scatter plot shows the time spent watching tv and the time spent doing homework by each of 25 students last week. also shown is the line of best fit for the data. fill in the blanks below. (a) for these 25 students, as the time spent watching tv increases, the time spent doing homework tends to (choose one) (b) for these 25 students, there is (choose one) 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 12 hours of tv would do homework for approximately (choose one)

the scatter plot shows the time spent watching tv and the time spent doing homework by each of 25 students last week. also shown is the line of best fit for the data. fill in the blanks below. (a) for these 25 students, as the time spent watching tv increases, the time spent doing homework tends to (choose one) (b) for these 25 students, there is (choose one) 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 12 hours of tv would do homework for approximately (choose one)

Answer

Explanation:

Step1: Analyze scatter - plot trend

As we can see from the scatter - plot, as the value on the x - axis (time spent watching TV) increases, the value on the y - axis (time spent doing homework) decreases.

Step2: Determine correlation type

Since the time spent doing homework decreases as the time spent watching TV increases, there is a negative correlation.

Step3: Predict value using line of best fit

Locate 12 on the x - axis (time spent watching TV). Then, find the corresponding y - value on the line of best fit. By visual inspection, when x = 12, y is approximately 18.

Answer:

(a) decrease (b) negative (c) 18 hours