Question 14
A box contains 9 white and 6 black balls. 2 balls are drawn at random without replacement. Find the expected value of the number of white balls drawn. Enter the answer correct to two decimal places.
Question 14: A box contains 9 white and 6 black balls. 2 balls are dr…
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Correct answer: 1.2 (accepted within ±0.03)
Question 14 of 15 in the IIT Madras BS Statistics for Data Science I (Stats 1) End Term paper sat on 13 Sept 2026, in the May 2026 term (Statistics1 13 Sep 26). It carries 4 marks.
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