There are two stores, and , which sell t-shirts on the market. The store has stock of red and 2 black t-shirts and the store has a stock of 2 red and black t-shirts. One of the stores is selected at random and two t-shirts are purchased without replacement from that store. Given that both the t-shirts purchased are red, the probability that they were purchased from store is
, find the value of .
Three independent draws are made from a standard deck of 52 playing cards, with replacement and reshuffling between each draw. Which of the following statements is/are correct?
The probability that the first card drawn is the King of Hearts is .
The probability that both the first and second cards drawn are red is
The probability that the third card drawn is the Ace of Spades is .
The events "the first card drawn is a Queen" and "the second card drawn is a Queen" are independent events.
Which of the following statements is(are) true?
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The IIT Madras BS Statistics for Data Science I (Stats 1) Quiz 2 paper sat on 12 Apr 2026, in the January 2026 term: 16 questions for 42 marks in 120 minutes. The first 3 questions are below. Sign in with Google — it is free — to see the whole paper with its answers and explanations, in learning mode or as a timed mock test.
| Feature | Stats 1 Quiz 2 12 Apr 2026 at a glance |
|---|---|
| Term | January 2026 term |
| Subject | Statistics for Data Science I |
| Course code | BSMA1002 |
| Questions | 16 |
| Marks | 42 |
| Duration | 120 min |
| Written | 9 |
| MSQ | 3 |
| MCQ | 4 |
| Official paper | Statistics1 06 Apr 26 |
| Negative marking | No negative marking. |
| Updated |
