Advanced Placement Calculus 2016 Graphical Numerical Algebraic Fifth Edition Student Edition + Mathxl 1-year License
5th Edition
ISBN: 9780133314533
Author: Prentice Hall
Publisher: Prentice Hall
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3- Find the equation of the regression line and find
the y_ value for the specified x value.
Calories and Cholesterol Calories and cholesterol
are as follows:
Calories
X
390
535
720
300
430
500
440
Cholesterol y
43
45
80
50
55
52
60
Find y-hat when x = 600 calories.
LO
LO
Just 2 please
Let x = day of observation and y = number of locusts per square meter during a locust infestation in a region of North Africa.
x
2
3
5
8
10
y
2
3
12
125
630
(a) Draw a scatter diagram of the (x, y) data pairs. Do you think a straight line will be a good fit to these data? Do the y values almost seem to explode as time goes on?
No. A straight line does not fit the data well. The data seem to explode as x increases.Yes. A straight line does not fit the data well. The data seem to explode as x increases. No. A straight line does not fit the data well. The data does not seem to explode as x increases.Yes. A straight line seems to fit the data well. The data seem to explode as x increases.
(b) Now consider a transformation y' = log (y). We are using common logarithms of base 10. Draw a scatter diagram of the (x, y') data pairs and compare this diagram with the diagram of part (a). Which graph appears to better fit a straight line?
The two diagrams are the same. The…
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