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Statistics Help

Thread starter Sajidul Siraji
Start date Aug 8, 2014

Aug 8, 2014

Sajidul Siraji

could someone please solve this for me:
The number of defective lamps found in every house has a Poisson distribution with mean 3.
a) Find the probability that for 7 particular houses, no defect lamps were found in 2 houses.
b) Find the probability that for 120 particular houses, at least 2 defect lamps were found in less than 70 houses

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