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In this exercise, you will use the correlation and regression applet to create scatter plots with 10 points that have a correlation close to 0.7. The

Scatterplots
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asked 2020-12-25
In this exercise, you will use the correlation and regression applet to create scatter plots with 10 points that have a correlation close to 0.7. The lesson here is that many models may have the same correlation. Always compile your data before trusting correlations. (a) Stop after adding the first two points. What is the value of correlation?
(Enter your answer, rounded to four decimal places).
r=?
Why does correlation matter? Two is the minimum number of data points required to calculate the correlation. This value is the default correlation.
Because two points define a line, correlation always matters.
The mean of these two values always has this value.

Answers (1)

2020-12-26
Correlation is a statistical technique that can show whether and how strongly pairs of variables are related.
The correct answer is that
Because two points determine a line, the correlation always has this value.
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asked 2020-12-25
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