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Makovka662 [10]
4 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]4 years ago
4 0

Answer:45000,000,000,000

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

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The percentage increase of the value of Tessa's stock is 21%.

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Using this formula

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