Exam 3: Descriptive Statistics

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Suppose you are discussing the homogeneity and heterogeneity of your clients' weight-training results with one of your colleagues. Which of the following terms will you probably use in the discussion?

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If a set of scores is transformed by adding a constant (other than zero) to each score, which of the following statistics would remain unchanged?

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In a normal distribution with a mean of 73.0 and a standard deviation of 6.4, what is the value of the median?

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Fifty-five scores were obtained from a sit-up test given to sixth-grade children. The highest score was 52, and the lowest score was 7. What is the range of these scores?

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A distribution has a mean (x̄) of 30, a median of 25, and a mode of 23. Describe the distribution.

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The sum of the deviation values for eight scores from a distribution of 10 scores is -10. What is the sum of the deviation values for the other two scores?

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Which of the following is NOT affected by the VALUE of every score in the distribution from which it is calculated?

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Which measurement of variability is usually reported with the mean?

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Using the following data, what is the standard deviation of this population (to the nearest one-tenth)? 30, 12, 7, 7, 6, 5, 3, 2, 0

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The deviation values for six of seven scores in a distribution are: 5, 2, 0, -2, -3 and -4. What is the deviation value for the seventh score?

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Mean Standard Deviation Distribution \#1 80 6 Distribution \#2 60 8 Distribution \#3 70 7 -Using the information above, which distribution is the most homogeneous?

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Describe a data matrix.

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What is the standard deviation of a population if the sum of the squared deviations is 81 and there are 9 people in the population?

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For a set of 5,000 scores, the mean is 98, the median is 100, and the mode is 102. Which of the following is TRUE about this distribution?

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In a distribution having 56 scores, what score is the median?

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