2. Dataset basics Data types Aa Aa Students in a business statistics class devel

Question

2. Dataset basics Data types Aa Aa Students in a business statistics class developed a pricing model for diamond stones The top and bottom portions of the data set that the students collected are reproduced in the following table; dots indicate that the intervening rows in the data set are not displayed. [Source: S. Singfat Chu, "Pricing the C's of diamond stones," Journal of Statistics Education 9(2) (2001).] Diamond ID Price (Singapore dollars) Weight (Carats) Color Clarity Certification Body 8,873 3,635 11,696 8,095 3,501 H VS E VS1 F VVS1 VS1 F Vvs2 1.01 0.52 4 0.5 304 305 306 307 308 4,401 2,942 3,706 1,555 1,098 0.63 0.46 0.55 0.31 0.33 G VWS2 E VVS2 F VVS2 VS1 VS2 Note that color purity is a desirable characteristic of a diamond. A grade of D indicates top color purity, a diamond graded E has less color purity than a diamond graded D, a diamond graded F has less color purity than a diamond graded E, and so on. Clarity is also a desirable characteristic. The top clarity rating is IF (internally flawless); other clarity ratings, in descending order, are VVS1, VVS2, VS1, and VS2. (VVS is the notation for "very, very slightly imperfect," and VS is shorthand for "very slightly imperfect.") Certification Body has three different values, which are coded as 1 = Gemological Institute of America, 2 = International Gemological Institute, and 3 = HRD Antwerp

Explanation / Answer

ANSWER :-

Option D

From the given data

Certification Body, color and Clarity

These are the variables in the data set are categorical.

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