Question
Two hats are picked at random, what is the probability
that all hats are of green colour? A box contains 6 red, 4 blue, 2 green and 4 yellow hats.Solution
Total number of hats = 6 + 4 + 2 + 4 = 16 Let S be the sample space. Then, n(S) = number of ways of drawing 2 hats out of 16 = ¹⁶C₂ = (16 × 15)/( 2 × 1) = 120 Let E= event of drawing all the hats are of green colour n(E) = ²C₂ = 1 ∴ P (E) = (n(E))/(n(S)) = 1/120
Manobala passed away at 69 due to illnesses, he was associated with which industry?
Who has been appointed as the new Deputy Chief of the Indian Air Staff in May 2023?
Which Indian athlete has created a national record in the men's triple jump event held in Havana, Cuba in May 2023?
Reserve Bank of India has imposed a penalty of Rs 1.73 crore on which bank in May 2023?
Indian Army appointed five women officers to which division of military forces?
Who left Google to spread awareness towards the rising threats of AI to society?
Which state has introduced a new policy named State Robotics Framework in May 2023?
The Ministry of Home Affairs introduced which grain in the meals of the Indian Armed Forces?
Which company has got the telecom license in India in May 2023?
Which metro service in India has introduced paper tickets with QR codes in May 2023?
