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den301095 [7]
3 years ago
7

The tires on your bicycle have a radius of 13 inches. How many rotations does each tire make when you travel 1200 feet? Round yo

ur answer to the nearest whole number.
Mathematics
2 answers:
kherson [118]3 years ago
6 0

Answer:

176

Step-by-step explanation:

1 foot = 12 inch

1200 feet = 12 x 1200 = 14400 inch

circumference of tyre = pi x 13 x 2 = 81.6814

14400 / 81.6814 = 176.29

Blizzard [7]3 years ago
4 0

Answer:

hi

Step-by-step explanation:

ji

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The number of phone calls that Actuary Ben receives each day has a Poisson distribution with mean 0.1 during each weekday and me
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Answer:

There is a 0.73% probability that Ben receives a total of 2 phone calls in a week.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

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The problem states that:

The number of phone calls that Actuary Ben receives each day has a Poisson distribution with mean 0.1 during each weekday and mean 0.2 each day during the weekend.

To find the mean during the time interval, we have to find the weighed mean of calls he receives per day.

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So:

\mu = \frac{5(0.1) + 2(0.2)}{7} = 0.1286

If today is Monday, what is the probability that Ben receives a total of 2 phone calls in a week?

This is P(X = 2). So:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

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There is a 0.73% probability that Ben receives a total of 2 phone calls in a week.

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2 years ago
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