Question

Three books are selected at random from a shelf containing 4 novels, 2

books of poems and a dictionary. What is the probability that:

i) 2 novels and 1 poem book is selected.

ii) dictionary is not selected.

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Answer 1

Answer:

4novels, 2poem book, 1dictionary

total books = 4+2+1 = 7

1. probability of 2 novels and 1 poem book = (2+1)/7 = 3/7
2. probability of dictionary not selected = (4+2)/7 = 6/7