Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Please help step by step with explanation with Program R (CS) with a final code for understanding thank you.
Transcribed Image Text:Problem#2
17. You Explain It! Video Games and GPAs A student at Joliet
NW Junior College conducted a survey of 20 randomly selected
full-time students to determine the relation between the
number of hours of video game playing each week, x, and
grade-point average, y. She found that a linear relation exists
between the two variables. The least-squares regression line
that describes this relation is ŷ= -0.0526x + 2.9342.
(a) Predict the grade-point average of a student who plays
video games 8 hours per week.
(b) Interpret the slope.
(c) If appropriate, interpret the y-intercept.
(d) A student who plays video games 7 hours per week has
grade-point average of 2.68. Is this student's grade-pou
average above or below average among all students why.
play video games 7 hours per week?
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