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3 years ago

Is the number 749 rational?

Mathematics

1 answer:

Stolb23 [73]3 years ago

3 0

Yes. Because rational numbers can be written in a form of fraction and they are integers.

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For a group of 100 people, compute(a) the expected number of days of the year that are birthdays of exactly 3 people.(b) the exp

Scilla [17]

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

$\frac{1}{365}$

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

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And hence no of days having exactly 3 persons birthday out of 100 persons is binomial with n = 365 and p = $\frac{1}{365^3}$

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3 years ago

64-144a+108a^2-27a^3

solmaris [256]

the answer for this question is 64-144a+108a^2-27a^3

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3 years ago

Is the number 749 rational?​

Is the number 749 rational?