Question
Anna is participating in a trivia game with 6 questions,
each with 3 choices. Only one choice is correct per question. If Anna guesses on all questions, what is the probability that she gets exactly 3 correct?Solution
ATQ, Probability of a correct guess = 1/3 Probability of an incorrect guess = 2/3 Number of ways to choose 3 correct answers out of 6 = (6/3) = 20 So, the required probability = 20 × (1/3)3 × (2/3)3 = (20×1×8)/(27×27) = 160/729
 The Infant Protection Day is observed annually on?
Who has been appointed as the Prime Minister of the country Somalia?
Where was the inaugural meeting of the Inland Waterways Development Council (IWDC) held?
The first session of Uttar Pradesh Legislature was commenced on which date?Â
The Prime Minister, Shri Narendra Modi has inaugurated the Maitree Power Project in which of the following countries?
Where recently has IIT Delhi announced to start its first academic session 2024-25?
Who is considered the first Guru of the Sikhs?
Who was appointed as the legal advisor of India's Constituent Assembly?
Who has become the second youngest Indian to score a fifty in T20I cricket?
Based on which committee's recommendations did RBI introduce a comprehensive regulatory framework for NBFC-MFIs?
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