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Makovka662 [10]
3 years ago
11

A betting company wishes to sell 5000 tickets 50 of which will win prizes. I.) A students decided to buy 200 tickets. Let X be t

he number of tickets that win a prize. Write the probability distribution of X and give its mean. Ii.) Using a Poisson approximation for the distribution of X find the probability of at least three tickets winning a prize. Iii.) Calculate the number of tickets that should be bought so as the probability of at least one winning a prize is 90%
Mathematics
1 answer:
Alex777 [14]3 years ago
4 0

Answer:45000,000,000,000

Step-by-step explanation:you just have to times it

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lorasvet [3.4K]

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we know that

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The draw in the attached figure

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Step-by-step explanation:

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3 years ago
Read 2 more answers
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