# Behavioral Sciences STAT

Mathematics

## Quiz 4 :Summarizing Scores With Measures of Variability Looking for Finite Mathematics / Applied Calculus Homework Help?

## Quiz 4 :Summarizing Scores With Measures of Variability

Showing 1 - 20 of 58  Measures of variability are used to
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Multiple Choice

A The term variability is most opposite to
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B The greater the variability in a set of scores,
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A A program evaluator for a large school district wants to know how much intelligence varies in the elementary schools.She selects one classroom at each grade level in each elementary school and administers an intelligence test to the children in those classrooms.In order to find out which school has the most consistent intelligence level, which of the following should she calculate for each school?
Multiple Choice A program evaluator for a large school district wants to know how much intelligence varies in the elementary schools.She selects one classroom at each grade level in each elementary school and administers an intelligence test to the children in those classrooms.If the program evaluator wants to find out which school has the highest intelligence level, which of the following should she calculate for each school?
Multiple Choice As with measures of centrality, the selection of a measure of variability should be based on
Multiple Choice When computing the variance, why do we square the deviations from the mean?
Multiple Choice Variance is defined as the
Multiple Choice If the variance for a sample is computed and it is found to be rather large, the scores
Multiple Choice Standard deviation is defined as the square root of the
Multiple Choice If a sample has a small standard deviation, we can say the scores in the sample are
Multiple Choice In general, the larger the value of the standard deviation,
Multiple Choice The greater the variability, the more spread out the scores are around the
Multiple Choice The variance can never be
Multiple Choice Suppose we compute $S_{X}$ and find it is equal to 5.5.How do we interpret this number?
Multiple Choice If you see the notation $\sum X^{2}$ , you should
Multiple Choice If you see the notation $(\Sigma X)^{2}$ , you should
Multiple Choice What is wrong with the following formula? $S_{X}^{2}=\sqrt{\frac{\sum X^{2}-\frac{(\Sigma X)^{2}}{N}}{N}}$
Multiple Choice  What do $\left(S_{X}^{2}\right)$ , $\left(s_{X}^{2}\right)$ , and $\left(\sigma_{X}^{2}\right)$ have in common? 