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Statistics for Data Science I · Qualifier · 22 Dec 2024 · September 2024 term

Question 16: Choose the correct option(s) after making a two-way cont…

Question 16

+3 marksOne or more correct options

Sukanya took a survey of a group of 42 college going students (consisting only of male and female students) to know whether they own a smartphone or not and she got to know the following information.
(i). There are 4 males who own a smartphone.
(ii). There are total 30 females.
(iii). There are total 12 students who own a smartphone.
Based on the given information, answer the given subquestions.

Choose the correct option(s) after making a two-way contingency table.

Select all that apply.

  1. A

    There are 66.66% of the males who do not own a smartphone.

  2. B

    There are 73.33% of the females who own a smartphone.

  3. C

    28.57% of the total students own a smartphone.

  4. D

    We can calculate covariance to find the association between “Gender” and “Ownership of the smartphone”.

Show answer

Correct answers

  • A

    There are 66.66% of the males who do not own a smartphone.

  • C

    28.57% of the total students own a smartphone.

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Question 16 of 16 in the IIT Madras BS Statistics for Data Science I (Stats 1) Qualifier paper sat on 22 Dec 2024, in the September 2024 term (IIT M DS REATTEMPT AN EXAM QDQ1 22 Dec 2024). It carries 3 marks.

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