Dr Meeney Calculated Correlation Coefficients for Two Different Sets of Data

question 156

Multiple Choice

Dr. Meeney calculated correlation coefficients for two different sets of data. He found that data set X had a correlation coefficient of -0.75, and data set Y had a correlation coefficient of +0.58. Dr. Meeney can conclude that:

• A)set X has a stronger correlation than set Y
• B)set Y has a stronger correlation than set X.
• C)the data in set X were positively skewed.
• D)the data in set Y were negatively skewed.

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Definitions:

Data-Processing Techniques

Methods and procedures used for transforming raw data into meaningful information through various manipulations such as coding, sorting, and summarizing.

Sampling Without Replacement

Once an element has been included in the sample, it is removed from the population and cannot be selected a second time.

Big Data

Extremely large data sets that may be analyzed computationally to reveal patterns, trends, and associations, especially relating to human behavior and interactions.

Volume

The amount of data generated.