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

Question 15: Create a two-way contingency table and find out the numb…

Question 15

+2 marksOne correct option

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.

Create a two-way contingency table and find out the number of males in this group who do not own a smartphone

  1. A

    0

  2. B

    12

  3. C

    8

  4. D

    4

Show answer

Correct answer

  • C

    8

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Question 15 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 2 marks.

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