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.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter5: Inverse, Exponential, And Logarithmic Functions

Section5.6: Exponential And Logarithmic Equations

Problem 6E

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Question

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

Speak

Volume
60
40
20
60.0
70.0
Height
80.0
90.0

Definition Definition Relationship between two independent variables. A correlation tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

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