STATS TEST 1

# STATS TEST 1 - Main Question 1 1 1 point Which of the...

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Main Question 1 1 / 1 point Which of the following is an example of a continuous variable? Family income Number of students in a statistics class Zip codes of shoppers Rankings of baseball teams in a league None of the above Question 2 1 / 1 point The incomes of a group of 50 loan applicants are obtained. Which level of measurement is income? Nominal Ordinal Interval Ratio None of the above Question 3 0 / 1 point Respondents were asked, "Do you now earn more than or less than you did five years ago?" What is this level of measurement? Interval Ratio Nominal Ordinal None of the above Question 4 0 / 1 point What type of variable is the number of gallons of gasoline pumped by a filling station during a day? Qualitative Continuous Attribute Discrete None of the above Question 5 0 / 1 point What type of variable is the number of robberies reported in your city? Attribute Continuous Discrete Qualitative None of the above Question 6 1 / 1 point What level of measurement is a bar code? Ratio

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Interval Nominal None of the above Question 7 1 / 1 point For quantitative data, the relative frequency for a class is computed as Class width divided by class interval. Class midpoint divided by the class frequency. Class frequency divided by the class interval. Class frequency divided by the total frequency. Question 8 0 / 1 point A group of 100 students were surveyed about their interest in a new International Studies program. Interest was measured in terms of high, medium, or low. 30 students responded high interest; 50 students responded medium interest; 40 students responded low interest. What is the relative frequency of students with high interest? 30% 50% 40% Cannot be determined. Question 9 0 / 1 point A student was studying the political party preferences of a university's student population. The survey instrument asked students to identify themselves as a democrat or a republican. This question is flawed because: Students generally don't know their political preferences. The categories are generally mutually exclusive. The categories are not exhaustive. Political preference is a continuous variable. Question 10 0 / 1 point Why are unequal class intervals sometimes used in a frequency distribution? To avoid a large number of empty classes For the sake of variety in presenting the data To make the class frequencies smaller To avoid the need for midpoints None of the above Question 11 0 / 1 point For which measure of central location will the sum of the deviations of each value from the data's average will always be zero? Mode
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STATS TEST 1 - Main Question 1 1 1 point Which of the...

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