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2 years ago

1. The daily wages of 50 workers in a factory are given below:

Mathematics

1 answer:

nata0808 [166]2 years ago

3 0

I thing the answer is 7 days

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Which equation represents the amount of money that Mr. Cooney earns in x hours? math

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3 years ago

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Write 108.92 in expanded form

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3 years ago

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marishachu [46]

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3 years ago

Emergency 911 calls to a small municipality in Idaho come in at the rate of one every two minutes. Assume that the number of 911

nordsb [41]

Answer: a) 30, b) 0.2138, c) 0.0820

Step-by-step explanation:

Since we have given that

X be the number of calls in 1 hour = 60 minutes

Rate of one call every two minutes.

$\lambda=\dfrac{1}{2}$

(a) What is the expected number of 911 calls in one hour?

$\lambda=\dfrac{1}{2}\times 60=30$

(b) What is the probability of three 911 calls in five minutes? If required, round your answer to four decimal places.

$\lambda=\dfrac{1}{2}\times 5=2.5$

Number of calls = 3

So, P(X=3) is given by

$P(X=3)=\dfrac{e^{-\lambda}\lambda^x}{x!}\\\\P(X=3)=\dfrac{e^{-2.5}\times (2.5)^3}{3!}\\\\P(X=3)=0.2138$

(c) What is the probability of no 911 calls during a five-minute period? If required, round your answer to four decimal places.

$P(X=0)=\dfrac{e^{-2.5}(2.5)^0}{0!}=0.0820$

Hence, a) 30, b) 0.2138, c) 0.0820

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3 years ago

A rectangular prism has a length of 312 in., a width of 5 in., and a height of 112 in.

Soloha48 [4]

Multiply the dimensions to get 174,720 in^3

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3 years ago

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