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CBSE Class 9 Answered

Asked by Topperlearning User | 11 Dec, 2013, 02:18: AM
answered-by-expert Expert Answer

(a) Let E be the event that student is from grade 3.

Then, P(E) = 

(b) Let F be the event that student is not in grade 2, 3, 4, 5 or grade 6.

i.e. student is in grade 1

Thus, P(F) = 

Answered by | 11 Dec, 2013, 04:18: AM

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