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Statistics for Data Science I · Qualifier · 7 Aug 2022 · May 2022 term

Question 5: Consider various variables that describe the specification…

Question 5

+2 marksOne or more correct options

Consider various variables that describe the specifications of mobile phones in a store. These variables include the brands, internal storage (in GB), display size (in inches), price (in rupees), support (3G, 4G, 5G), and sim slots (single, dual). The specifications for different mobile phones are listed in a table. Based on the given information, choose the correct statement(s) from the following:

Select all that apply.

  1. A

    Display size (in inches), internal storage (in GB), and price (in rupees) are numerical variables.

  2. B

    Brands of mobile phones have the ordinal scale of measurement and internal storage (in GB) have the ratio scale of measurement.

  3. C

    Brands of mobile phones have the nominal scale of measurement and internal storage (in GB) have the ratio scale of measurement.

  4. D

    Support (3G, 4G, 5G), brands, sim slots (single, dual) are categorical variables.

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Correct answers

  • A

    Display size (in inches), internal storage (in GB), and price (in rupees) are numerical variables.

  • C

    Brands of mobile phones have the nominal scale of measurement and internal storage (in GB) have the ratio scale of measurement.

  • D

    Support (3G, 4G, 5G), brands, sim slots (single, dual) are categorical variables.

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Question 5 of 17 in the IIT Madras BS Statistics for Data Science I (Stats 1) Qualifier paper sat on 7 Aug 2022, in the May 2022 term (IIT M QUALIFIER EXAM QPE 07 Aug 2022 IBA NS). It carries 2 marks.

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