Skip to content
We use only essential cookies to keep you signed in and remember your preferences. See our Cookie Policy.
TestStop
MocksPracticeResourcesIndiaBlogPricing
Sign in
Questions › DSE › DSE 2020 › Q14
4 marks, −1Statistics › Probability and Bayes' theorem › Repeated trials: binomial and geometric probabilitiesModerateabout 3 min

DSE 2020 Question 14: Probability and Bayes' theorem

AAA and BBB play a best-of-seven match (first to win four games wins), and each is equally likely to win any game. The probability that the match ends in 666 games is

Tap an option to check your answer.

Answer and worked solution

Checking your account…

Plain-text version

A and B play a best-of-seven match (first to win four games wins), and each is equally likely to win any game. The probability that the match ends in 6 games is (A) less than the probability that it ends in 7 games (B) equal to the probability that it ends in 7 games (C) greater than the probability that it ends in 7 games (D) None of these

Probability and Bayes' theorem has come up 190 times in 7 exams since 2004.

What this question tests

This question is on Repeated trials: binomial and geometric probabilities, part of Probability and Bayes' theorem in Statistics.

Probabilities from independent repeated experiments.

TestStop has 14 past-paper questions on this subtopic; the nearest in year are below.

  • IIT JAM 2022 · Q25The probability of getting a head in a toss of a biased coin is 2/3. The coin is tossed three times…
Practise Probability and Bayes' theoremMore on Repeated trials: binomial and geometric probabilities

Similar questions from other papers

  • CUET-PG 2026 · Q21Conditional Probability can be calculated by
  • IIT JAM 2026 · Q11In a year of 366 days, what is the chance that three persons have different birthdays?
  • CUET-PG 2025 · Q19If we twice flip a balanced coin, what is the probability of getting at least one head?
  • IIT JAM 2025 · Q42Two cards are drawn from a full pack of 52 cards at random. The probability of getting a heart and a diamond is (*rounded off to two decimal places*).
  • UGC-NET 2025 · Q28In a population of men in a city, 3% are observed to suffer from cancer, 15% are found to be smokers, while 10% are noticed to be either smokers or cancer patients. If…

Question from the DSE 2020 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.