# (Done Paper) Correlation “For a skewed distribution, the mean is pulled in the direction of the extreme scores.”  Is this statement true or false

## (Done Paper) Correlation “For a skewed distribution, the mean is pulled in the direction of the extreme scores.”  Is this statement true or false

Study Guide

Correlation

1. “For a skewed distribution, the mean is pulled in the direction of the extreme scores.”  Is this statement true or false

1. Which average is defined as the value that has 50% of the cases below it?

1. If two groups are equal on average, will they necessarily be equal in their variability?

1. What is the outlier in this set of scores: 2, 18, 18, 20, 20, 21, 22?

1. Is the interquartile range or the range a better measure of variability?

1. What is the interquartile range of these scores: 10, 10, 11, 12, 13, 13, 14, 14, 14, 15, 17, 18, 18?

1. The interquartile range is associated with which average?

1. What symbol do statisticians use for the standard deviation?

1. What is the symbol for the deviation of a score from its mean?

1. If the mean for a group equals 40.00 and the standard deviation equals 5.00, what percentage of the cases in a normal distribution lies between 40 and 45?

1. If the mean for a group equal 27.00 and the standard deviation equals 3.00, what percentage of the cases in a normal distribution lies between 24 and 30?  Loading... Taking too long? Reload document
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