The data reduction process of descriptive statistics________.
A) allows a few meaningful numbers to summarize a large amount of data.
B) eliminates incorrect data.
C) simply lists all available information in order.
D) is rarely used.

Question

Quizplus · Accepted Answer

Descriptive statistics involve summarizing and reducing large amounts of data to a few meaningful numbers, such as measures of central tendency (mean, median, mode) and measures of variability (range, variance, standard deviation). Therefore, choice A is correct as it accurately describes the purpose of data reduction in descriptive statistics. Choice B is incorrect as data reduction does not necessarily involve eliminating incorrect data; this is a separate process of data cleaning. Choice C is incorrect as data reduction involves summarizing, not listing all available information. Choice D is also incorrect as descriptive statistics is a commonly used method for analyzing and summarizing data.

The Data Reduction Process of Descriptive Statistics________