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MHT CET202016 Oct 2020Evening ShiftMathematicsProbabilityActual

If a die is thrown at random, then the expectation of the number on it is

Options

  1. A2.4
  2. B3.5
  3. C2.1
  4. D3.3

Correct answer

B. 3.5

Step-by-step solution

(D) When a die is thrown, probability of getting any number from 1 to 6 is 1 6 . Expectation of a number on it to occur array l = (1 1 6 )+ (2 1 6 )+ (3 1 6 )+ (4 1 6 )+ (5 1 6 )+ (6 1 6 ) = 1 6 (1+2+3+4+5+6)= 21 6 =3.5 array

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