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2 years ago

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Jenna's statistics classes have the following enrollments: section A has 22 students, section B has 38 students, and section c h

as 40 students. what percentage of Jenna's students are in section B

1 answer:

Elina [12.6K]2 years ago

5 0

Answer:38%

Step-by-step explanation:

38/100=.38

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Answer:

Step-by-step explanation:

Leaving leap years, a year contains 365 days.

For a group of 100 people, each person is independent of the other and probability of any day being his birthday has a chance of

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a) Probability that exactly 3 people have same birthday = $\frac{1}{365^3}$

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Expected value of days = np = $\frac{1}{365^2}$

b) Distinct birthdays is binomail with p =1/365 and n = 365

Hence

expected value = np =1

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