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lapo4ka [179]
3 years ago
7

“Find the measure of angle 1 if angle CUB=78. Name the special pair of angles formed.”

Mathematics
1 answer:
blondinia [14]3 years ago
5 0

\\ \rm\longmapsto

\\ \rm\longmapsto

\\ \rm\longmapsto

\\ \rm\longmapsto

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its fifteen fiths

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what is the question asking

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766.87 is how much he is paid in all.

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Banu is 20 years older than binu. In 5 years, Banu will be twice as old as binu. Find their present age.
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The owner of a small deli is trying to decide whether to discontinue selling magazines. He suspects that only 10% of his custome
Rainbow [258]

Answer:

0.55% probability that exactly 5 out of the first 13 customers buy a magazine

Step-by-step explanation:

For each customer, there are only two possible outcomes. Either they buy a magazine, or they do not. The probability of a customer buying a magazine is independent of other customers. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

10% of his customers buy a magazine

This means that P = 0.1

What is the probability that exactly 5 out of the first 13 customers buy a magazine?

This is P(X = 5) when n = 13. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 5) = C_{13,5}.(0.1)^{5}.(0.9)^{8} = 0.0055

0.55% probability that exactly 5 out of the first 13 customers buy a magazine

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3 years ago
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