Descriptive Statistics MCQ

Descriptive Statistics MCQ

1. Range Rule is when data are approximately normally distributed, the range is approximately 4 times the standard deviation .

Answer

Correct Answer: True

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2. The number of independent pieces of information that a statistic is based on is known as _______ .

Answer

Correct Answer: Degrees of Freedom

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3. SS stands for (in Applied statistics) _______ .

Answer

Correct Answer: Sum of Squares

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4. The sum of squared deviations of scores relative to a mean; this term provides information about variability is known as _______ .

Answer

Correct Answer: Sum of Squares

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5. Variability is a set of scores that has variability if any individual X scores differ from the mean.

Answer

Correct Answer: True

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6. A distribution of scores is skewed if its shape (such as length of tail) differs for the lower and upper ends is known as ________ .

Answer

Correct Answer: Skewed

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7. A statistic is considered robust if problems with the data do not make the statistic a poor estimate is known as _______ .

Answer

Correct Answer: Robust

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8. Median is a measure of central tendency that is obtained by ranking the scores in a sample from lowest to ________ .

Answer

Correct Answer: Both a & b

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9. A set of scores has variation if any of the individual X scores differ from the mean is known as _______ .

Answer

Correct Answer: Variation

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10. The ________ of a distribution of scores can be described by the mode and by the mean, median, or mode for quantitative variables .

Answer

Correct Answer: Central Tendency

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