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The height (in feet) and volume of usable lumber (in cubic feet) of 32 cherry trees are measured by a researcher. The goal is to determine if volume of usable lumber can be estimated from the height of a tree. The results are plotted below. (a) The scatterplot suggests A. there is an outlier in the plot. B. there is a positive association between height and volume. C. both A and B. D. neither A nor B.

The height (in feet) and volume of usable lumber (in cubic feet) of 32 cherry trees are measured by a researcher. The goal is to determine if volume of usable lumber can be estimated from the height of a tree. The results are plotted below. (a) The scatterplot suggests A. there is an outlier in the plot. B. there is a positive association between height and volume. C. both A and B. D. neither A nor B.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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 1. The height (in feet) and volume of usable lumber (in cubic feet) of 32 cherry trees are measured by a researcher. The goal is to determine if volume of usable lumber can be estimated from the height of a tree. The results are plotted below.

(a) The scatterplot suggests



A. there is an outlier in the plot.
B. there is a positive association between height and volume.
C. both A and B.
D. neither A nor B.


2. Now consider the following scatterplot of the weight of cars (in thousands of pounds) versus their gas mileage (mpg).

 

(a) A plausible value for the correlation between weight and mpg is

A. +0.7
B. +0.2
C. -1.0
D. -0.9

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Volume 60 40 20 60.0 70.0 Height 80.0 90.0
Transcribed Image Text:Volume 60 40 20 60.0 70.0 Height 80.0 90.0
MPG 35 20 Weight
Transcribed Image Text:MPG 35 20 Weight
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