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Author Question: If covariance between two variables is near 0, it implies that a. a positive relationship exists ... (Read 159 times)

vicky

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on: Jun 24, 2018
If covariance between two variables is near 0, it implies that
 a. a positive relationship exists between the variables.
  b. the variables are not linearly related.
  c. the variables are negatively related.
  d. the variables are strongly related.

Question 2

Which of the following graphs provides information on outliers and IQR of a data set?
 a. Histogram b. Line chart
  c. Scatter chart d. Box plot


joshraies

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Reply #1 on: Jun 24, 2018
Answer to Question 1

b
RATIONALE: If the covariance between two variables is near 0, then the variables are not linearly related.

Answer to Question 2

d
RATIONALE: A box plot is a graphical summary of the distribution of data, and it is developed from the quartiles for a data set. Therefore, the information on the outliers and IQR can be obtained from a box plot.


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