glasskerfu
2021-07-24
Answered

Sketch a scatterplot in which the presence of an outlier decreases the observed correlation between the response and explanatory variables.

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tafzijdeq

Answered 2021-07-25
Author has **92** answers

The scatterplot solution:

asked 2021-03-02

1) In what way is the point unusual? Does it have high leverage, a large residual, or both?

2) Do you think that point is an influential point?

3) If that point were removed, would the correlation be- come stronger or weaker? Explain.

4) If that point were removed, would the slope of the re- gression line increase or decrease? Explain

asked 2020-12-07

The scatterplots below display three bivariate data sets. The correlation coefficients for these data sets are 0.03, 0.68, and 0.89. Which scatter plot corresponds to the data set with r = .03?

asked 2021-01-31

Make a scatterplot for each set of data.

asked 2021-03-05

Match the values of r with the accompanying scatterplots 0.723,-0.353,0.353,0.998 and -0.998

scatterplots 1,2,3,4,5

asked 2021-05-16

Make a scatterplot for the data.

Length (mi) and Water Flow ($1000\text{}f\frac{{t}^{3}}{s}$ ) of rivers

Length: 2540, 1980, 1460, 1420, 1290, 1040, 886, 774, 724, 659

Flow: 76, 225, 41, 58, 56, 57, 68, 67, 67, 41

Length (mi) and Water Flow (

Length: 2540, 1980, 1460, 1420, 1290, 1040, 886, 774, 724, 659

Flow: 76, 225, 41, 58, 56, 57, 68, 67, 67, 41

asked 2021-06-22

Which set of ordered pairs could be generated by an exponential function?
a. (0, 0), (1, 1), (2, 8), (3, 27)
b. (0, 1), (1, 2), (2, 5), (3, 10)
c. (0, 0), (1, 3), (2, 6), (3, 9)
d. (0, 1), (1, 3), (2, 9), (3, 27)

asked 2021-11-18

Use a scatterplot and the linear correlation coefficient r to determine whether there is a correlation between the two variables.

$$\begin{array}{|cccccc|}\hline x& 1& 0& 5& 2& 3\\ y& 3& 1& 15& 6& 8\\ \hline\end{array}$$