1.

Consider a case where you know the probability of finding at least one shooting star in a 15-minute interval is 30%. Evaluate the probability of finding at least one shooting star in a one-hour duration?

Answer»

We KNOW that,PROBABILITY of finding ATLEAST 1 SHOOTING star in 15 min = P(sighting in 15min) = 30% = 0.3Hence, Probability of not sighting any shooting star in 15 min = 1-P(sighting in 15min) = 1-0.3 = 0.7 Probability of not finding shooting star in 1 hour = 0.7^4 = 0.1372Probability of finding atleast 1 shooting star in 1 hour = 1-0.1372 = 0.8628

So the probability is 0.8628 = 86.28%



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