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QUESTION
Q
The probability that an event A happens in one trial of an experiment is 0.4. Three independent trials of the...

Solution

The probability that an event A does not happens in one trial of an experiment is = 1 − 0.4 = 0.6Let, the number of times the event A happens in three...

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Solution

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Keynote

Binomial Distribution:P(X = r) = nCr.pr.(1 − p)n−rwhere,n = Number of eventsr = Number of successful events.p = Probability of success on a single trial.nCr = (n!/(n-r)!) / r!1 − p...

If p − 2q = 4, then the value of p3 − 8q3 − 24pq − 64 is :

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Study the graph carefully and answer the following questions

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Read the passage carefully and answer the following questions. The concept of ‘creative society’ refers to a phase of development of a society in which a large number of potential contradictions become articulate and active. This is most evident when oppressed social groups get politically mobilised and demand their rights. The upsurge…

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