Stat Quiz 1

Stat Quiz 1 - Each set has a sample size of nine Set A 15...

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Stat Quiz 1: Marks: 1 Select the appropriate word to identify whether the measurement represents a categorical variable or a quantitative variable: The average number of minutes a person watches television each day. Choose one answer. A. Categorical B. Both C. Neither D. Quantitative Question 2 Marks: 1 A large company employs roughly 40% men. At a recent medical screening, all screened employees were classified by their blood pressure into three categories: healthy, borderline, potentially dangerous. Wondering if there was an association between gender and blood pressure classification, a statistician created some graphs. Which of these graphs shows NO association between gender and blood pressure? Choose one answer. a. Both Graphs A and B show no associati b. Only Graph A shows no association c. Only Graph B shows no association d. Neither Graph A Nor Graph B show no a Question 3 Marks: 1 Which set of (sorted) data below has the LARGEST standard deviation?
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Unformatted text preview: Each set has a sample size of nine. Set A: 15, 16, 19, 19, 19, 19, 19, 22, 23 Set B: 15, 16, 17, 18, 19, 20, 21, 22, 23 Set C: 15, 15, 15, 15, 19, 23, 23, 23, 23 Choose one answer. A. Set B B. Set C C. To determine this, I would need to use a D. Set A Question 4 Marks: 1 In a large statistics class, the mean midterm score was 95 points (graded from 0 to 100) with a standard deviation of 10 points. Imagine making a graphical summary of the distribution of scores. Assuming the distribution is unimodal, what shape is the distribution most likely to be? Choose one answer. a. Right skewed b. Symmetric c. Left skewed Question 5 Marks: 1 In a large, national study, researchers asked seniors how many alcoholic beverages they had drank in the previous week. The distribution of number of drinks was strongly right-skewed. From this we can conclude that Choose one answer....
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This note was uploaded on 01/21/2011 for the course STATS 10 taught by Professor Ioudina during the Spring '08 term at UCLA.

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Stat Quiz 1 - Each set has a sample size of nine Set A 15...

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