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Chapter 2: Q. 4 (page 88)

What is the relationship between a frequency or relative frequency distribution of a quantitative data set and that of a qualitative data set?

Short Answer

Expert verified

The frequency distribution shows the frequency of all conceivable values.

The relative frequency distribution shows the relative frequency of all conceivable values.

Step by step solution

01

Concept introduction

The quantity of one variable in algebraic equations is typically reliant on the position of another. If the data tuple isn't declared precisely, the variable's beginning value reflects the default value.

02

Explanation

The couple of times a result occurred dividing by the amount of times the investigation is performed is called "relative frequency."

The classes in qualitative data are always the various single values that the variable can have. It's probable that we'll need to employ classes instead of single data for a quantitative data set.

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Most popular questions from this chapter

Stressed-Out Bus Drivers. Frustrated passengers, congested streets, time schedules, and air and noise pollution are just some of the physical and social pressures that lead many urban bus drivers to retire prematurely with disabilities such as coronary heart disease and stomach disorders. An intervention program designed by the Stockholm Transit District was implemented to improve the work conditions of the city's bus drivers. Improvements were evaluated by G. Evans et al., who collected physiological and psychological data for bus drivers who drove on the improved routes (intervention) and for drivers who were assigned the normal routes (control). Their findings were published in the article "Hassles on the Job: A Study of a Job Intervention With Urban Bus Drivers" (Journal of Organizational Behavior, Vol.20,pp.199-208). Following are data, based on the results of the study, for the heart rates, in beats per minute, of the intervention and control drivers.

High School Completion. As reported by the U.S. Census Bureau in Educational Attainment in the United States, the percentage of adults in each state and the District of Columbia who has completed high school is provided on the WeissStats site.

a. use the technology of your choice to identify the modality and symmetry (or non-symmetry) of the distribution of the data set.

b. if unimodal, classify the distribution as symmetric right-skewed. or left-skewed.

For quantitative data, we examined three types of grouping: single-value grouping, limit grouping, and cut point grouping. For each type of data given, decide which of these three grouping types is usually best, Explain your answers.

a. Continuous data displayed to one or more decimal places

b. Discrete data in which there are relatively few distinct observations

Of the variables you have studied so far, which type yields non numerical data ?

When is the use of single-value grouping particularly appropriate?
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