Question: a) How many different arrangements can be formed by using all letters of the word DISTRIBUTION if the last letter must be 'T? b) The

a) How many different arrangements can be formed by using all letters of the word DISTRIBUTION if the last letter must be 'T"? b) The events A and B are such that P(A') = 0.6, P(B) = 0.7 and P(AnB) = 0.2. Illustrate the events using Venn Diagram and determine P(AUB)

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