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Chapter 3: Q. 3 (page 150)

Among the measures of center discussed, which is the only one

appropriate for qualitative data?

Short Answer

Expert verified

The mode is the sole measure of central tendency that may be stated when the data being investigated is qualitative.

When the data is not quantifiable, the mode that indicates the highest frequency is the best measure of central tendency.

Step by step solution

01

Name of measure of centre best suited for qualitative data.

The mode is the sole measure of central tendency that may be stated when the data being investigated is qualitative.

02

Reason for Mode being the best.

Data that is not numerical in nature is referred to as qualitative data. It depicts the groups of data that are sorted. When the data is not quantifiable, the mode that indicates the highest frequency is the best measure of central tendency.

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Most popular questions from this chapter

Simple data sets have been given for you to try locating the descriptive metrics mentioned in this section. For each data set separately.

(a) Calculate the quartiles,

(b) calculate the interquartile range

(c)compile a five-number summary.

1,2,3,4,5,6

The Etruscans. Anthropologists are still trying to unravel the mystery of the origins of the Etruscan empire, a highly advanced Italic civilization formed around the eighth century B.C. in central Italy. Were they native to the Italian peninsula or, as many aspects of their civilization suggest, did they migrate from the East by land or sea? The maximum head breadth, in millimeters, of 70 modern Italian male skulls and that of 84 preserved Etruscan male skulls were analyzed to help researchers decide whether the Etruscans were native to Italy. The resulting data can be found on the WeissStats site. [SOURCE: N. Barnicot and D. Brothwell, "The Evaluation of Metrical Data in the Comparison of Ancient and Modern Bones." In Medical Biology and Etruscan Origins, G. Wolstenholme and C. O'Connor, cds., Littlc, Brown \& Co., 1959]

We have provided simple data set for you to practices the basics of finding measures of center. For each data set determine the:

a) Mean

b)Median

c) Mode.

The given data set is1,2,4,4.

The data set has size 40. Approximately how many observations lie within two standard deviations to either side of the mean?

A quantitative data set of size150has mean 35 and standard deviation4. At least how many observations lie between 23and 47?

See all solutions

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