Loraine is enrolled in an algebra class that meets 5 days per week. Her instructor gives a test every Friday. Loraine has a study plan and keeps a portfolio wi notes, homework, test corrections, and vocabulary. She also records the amount of time per day that she studies and does homework. The following data represent the amount of time she studied per day and her weekly test grades. Time Studied per Day Weekly Test Grade (min) (percent) 60 70 80 90 100 ANNKK8 y 72 74 76 78 80

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.3: Measures Of Spread
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Loraine is enrolled in an algebra class that meets 5 days per week. Her instructor gives a test every Friday. Loraine has a study plan and keeps a portfolio wi
notes, homework, test corrections, and vocabulary. She also records the amount of time per day that she studies and does homework. The following data
represent the amount of time she studied per day and her weekly test grades.
Time Studied per Day Weekly Test Grade
(min)
(percent)
y
60
72
70
74
80
76
90
78
100
80
Transcribed Image Text:Loraine is enrolled in an algebra class that meets 5 days per week. Her instructor gives a test every Friday. Loraine has a study plan and keeps a portfolio wi notes, homework, test corrections, and vocabulary. She also records the amount of time per day that she studies and does homework. The following data represent the amount of time she studied per day and her weekly test grades. Time Studied per Day Weekly Test Grade (min) (percent) y 60 72 70 74 80 76 90 78 100 80
Part 4 of 5
(c) How many minutes should Loraine study per day in order to score at least 90% on her weekly examination? Would the equation used to determine the
time Loraine needs to study to get 90% work for other students? Why or why not?
minutes per day in order to receive at least 90%
According to the linear model, Loraine would have to study at least
on her weekly examination.
X
This model (Choose one) appropriate for other students.
Transcribed Image Text:Part 4 of 5 (c) How many minutes should Loraine study per day in order to score at least 90% on her weekly examination? Would the equation used to determine the time Loraine needs to study to get 90% work for other students? Why or why not? minutes per day in order to receive at least 90% According to the linear model, Loraine would have to study at least on her weekly examination. X This model (Choose one) appropriate for other students.
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