What are these ungrouped numbers called A Histogra m B Class limits C Class

What are these ungrouped numbers called a histogra m

This preview shows page 74 - 78 out of 159 pages.

What are these ungrouped numbers called? A. Histogra m B. Class limits C. Class frequencies D. Raw data Histograms and frequency distributions summarize data. The data in the question are the individual observations that are not summarized. AACSB: Communication Blooms: Remember Difficulty: 1 Easy Learning Objective: 02-04 Create a frequency distribution for a data set. Topic: Constructing Frequency Distributions: Quantitative Data 18. When data is collected using a quantitative, ratio variable, what is true about a frequency distribution that summarizes the data? A. Upper and lower class limits must be calculated. B. A pie chart can be used to summarize the data. C. Number of classes is equal to the number of variable's values. D. The "5 to the k rule" can be applied. Choices B and C refer to frequency distributions for qualitative variables. For quantitative, ratio variables, the number of classes, the class interval, and class limits must be computed. AACSB: Analytic Blooms: Analyze
Image of page 74
Full file at Difficulty: 2 Medium Learning Objective: 02-04 Create a frequency distribution for a data set. Topic: Constructing Frequency Distributions: Quantitative Data 19. When data is collected using a qualitative, nominal variable, what is true about a frequency distribution that summarizes the data? A. The upper and lower class limits must be calculated. B. A pie chart can be used to summarize the data. C. The number of classes is equal to the number of variable's values plus 2. D. The "5 to the k rule" can be applied. A pie chart is used to show the relative frequency for a qualitative, nominal variable. Choices A and D apply to quantitative variables. AACSB: Analytic Blooms: Analyze Difficulty: 2 Medium Learning Objective: 02-03 Present a set of data using a pie chart. Topic: Constructing Frequency Distributions: Qualitative Data
Image of page 75
Full file at 20. When data is collected using a qualitative, nominal variable (in other words, male or female), what is true about a frequency distribution that summarizes the data? A. The upper and lower class limits must be calculated. B. Class midpoints can be computed. C. The number of classes corresponds to the number of a variable's values. D. The "2 to the k rule" can be applied. Gender is a nominal, qualitative variable that has two values. Therefore, the frequency distribution will only have two classes: male and female. AACSB: Analytic Blooms: Analyze Difficulty: 2 Medium Learning Objective: 02-01 Make a frequency table for a set of data. Topic: Constructing Frequency Distributions: Qualitative Data
Image of page 76
Full file at 21. A student was interested in the cigarette smoking habits of college students and collected data from an unbiased random sample of students. The data is summarized in the following table: Why is the table NOT a frequency distribution?
Image of page 77
Image of page 78

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture