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1.

A letter of English alphabet is chosen at random. Determine the probability that the chosen letter is a consonant.

Answer» Correct Answer - ` 21/26`
Out of 26 letters of English alphabet, there are 11 consonants.
`:. ` P(getting a consonant) = ` 21/26`.
Discussion
2.

Two different dice are thrown together. Find the probability that the numbers obtained have (i) even sum (ii) even product.

Answer» Correct Answer - ` (i) 1/2 (ii) 3/4 `
Discussion
3.

Two different dice are thrown together. Find the probability that the numbers obtained (i) have a sum less than 7 (ii) have a product less than 16 (iii) is a doublet of odd numbers.

Answer» Correct Answer - ` (i) 5/12 (ii) 25/36 (iii) 1/4`
Discussion