business stat 1

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EX01 for QMB 2100 (ADM 304) Statistical Businesses (Chapters 1 and 2) Name: Atoya Anderson You can use your book or slides. Place an “X” for your choice. Chapter 1 1. Which of the following is NOT an example of descriptive statistics? a. a histogram depicting the age distribution for 30 randomly selected students b. an estimate of the number of Alaska residents who have visited Canada c. a table summarizing the data collected in a sample of new-car buyers d. the proportion of mailed-out questionnaires that were returned 2. Which of the following is an example of categorical data? a. social security number b. score on a multiple-choice exam c. height, in meters, of a diving board d. number of square feet of carpet 3. Facts and figures collected, analyzed, and summarized for presentation and interpretation are called _____. a. data b. variables c. elements d. variables and elements 4. The entities on which data are collected are _____.

a. elements b. populations c. sets d. samples 5. A characteristic of interest for the elements is called a(n) _____. a. sample b. data set c. variable d. observation 6. In a data set, the number of observations will always be the same as the number of _____. a. variables b. elements c. data sets d. data 7. Which of the following is NOT a scale of measurement? a. nominal b. ordinal c. interval d. categorical 8. When the data are labels or names used to identify an attribute of the elements and the rank of the data is meaningful, the variable has which scale of measurement?

a. nominal b. ordinal c. interval d. ratio Chapter 2 9. Which of the following graphical methods is most appropriate for categorical data? a. ogive b. pie chart c. histogram d. scatter diagram 10. In a stem-and-leaf display, _____. a. a single digit is used to define each stem, and a single digit is used to define each leaf b. a single digit is used to define each stem, and one or more digits are used to define each leaf c. one or more digits are used to define each stem, and a single digit is used to define each leaf d. one or more digits are used to define each stem, and one or more digits are used to define each leaf 11. A graphical method that can be used to show both the rank order and shape of a data set simultaneously is a _____. a. relative frequency distribution

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b. pie chart c. stem-and-leaf display d. pivot table 12. Data that provide labels or names for groupings of like items are known as _____. a. categorical data b. quantitative data c. label data d. generic data 13. A researcher asked 20 people for their zip code. The respondents zip codes are an example of _____. a. categorical data b. quantitative data c. label data d. category data 14. The sum of frequencies for all classes will always equal _____. a. 1 b. the number of elements in a data set c. the number of classes d. a value between 0 and 1

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