11. Correlation

Given a dataset where the variables have a strong negative linear relationship, which of the following values is most likely to be the correlation coefficient?

When using the $\mathrm{CORREL}$ function in spreadsheet software, what does the function calculate between two variables?

Given four scatterplots, each showing a different pattern of data points, which scatterplot shows the weakest negative linear correlation ($r$ closest to $0$ but less than $0$)?

$A\; correlation\; indicates\; that\; there\; is\; \_\_\_\_\_\; between\; two\; variables.$

Which of the following is true of the correlation coefficient $r$?

What would the scatter plot look like for data that produce a Pearson correlation coefficient of $r=\mathrm{+0.88}$?

Given four scatterplots labeled A, B, C, and D, the calculated correlation coefficients are as follows: A: $0.9$, B: $-0.8$, C: $0.0$, D: $0.5$. Which scatterplot shows the strongest negative linear relationship?

Which of the following values of the correlation coefficient represents a moderate negative correlation?

Unlike $r^2$, adjusted $r^2$ explicitly accounts for which of the following in regression analysis?

Which of the following is a property of the linear correlation coefficient $r$?

The correlation coefficient $r$ measures only the strength of the $\mathrm{linear}$ relationship between variables.

Correlation analysis is used to determine which of the following between two variables?

Which of the following is not one of the three common errors involving $r$ (correlation)?

Which of the following statements concerning correlation analysis is not true?

Which statistic is commonly used to evaluate how well the sample regression equation fits the data?