MissDumb1
29.05.2020 •
Mathematics
1. We are now going to revisit our data from the homework yesterday, but with our calculator. A survey was
done at Ketcham High School to determine the effect of time spent on studying and grade point average.
The table below shows the results for 10 students randomly selected.
2
4
5
7
10
12
14
17
19
20
Study time
(Hours per week)
GPA
(out of 100)
64
71
69
74
81
86
84
94
91
96
(a) Enter the data in your calculator and use it to generate the equation for the line of best fit. Round your
slope to the nearest tenth and round your y-intercept to the nearest integer.
Solved
Show answers
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Ответ:
y = 1.7x + 62
Step-by-step explanation:
Instead of my calculator, I used Microsoft Excel. In the picture attached, the plot of the data points and the equation for the line of best fit are shown. The equation is: y = 1.7x + 62, where y-variable represents GPA (out of 100), and x-variable represents Study time (in hours per week)
Ответ:
A= 153.86
Step-by-step explanation:
49×3.14= 153.86