Question 4 (Essay Worth 10 points)
(06.07 HC)
A student is assessing the correlation between the average number of hours of internet browsing and average score on a math test. The table below shows
the data
Number of hours of
internet browsing
05
Score on math test
94
93
92
91
90
89
87
ly)
Part A: Is there any correlation between the average number of hours of internet browsing and average score on the math test? Justify your answer (4
points)
Part B: Write a function which best fits the data (3 points)
Part C: What does the slope and y-intercept of the plot indicate? (3 points)

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.