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Dima020 [189]
3 years ago
12

In country X, the average yearly salary of 50-year-olds with 16 years of education is $50,275, while the average yearly salary o

f 50-year-olds with 12 years of education is $36,265. According to this data, four additional years of education are likely to be correlated with higher future wages of about:
a. 24 percent.
b. 38 percent.
c. 50 percent.
d. 88 percent.
Mathematics
1 answer:
nika2105 [10]3 years ago
3 0

Answer:

38%

Step-by-step explanation:

The additional wage compared 12 years of education to 16 years of education is:

Extra\ wage\%=\frac{50,275-36,265}{36,265} *100 = 38.6%

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4 years ago
Which of the following statements is false?
pochemuha

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Assume that the arrival of airplanes at a one-runway airport is a Poisson distribution with a mean rate of 8 planes per hour. Th
Delvig [45]

Answer:

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Step-by-step explanation:

Given:

Mean rate of arrival (\lambda) = 8 planes/hr

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Applying the concept Poisson-distributed arrival and service rates (exponential inter-arrival and service times)(M/M/1) process:

We have to find mean number of planes waiting to land that is mean number of customers in the queue .

Mean number of customers in queue (L_q) .

⇒ L_q=\frac{\rho \lambda}{\mu-\lambda}

   Considering, \rho=\frac{\lambda}{\mu} , \rho is also mean number of customers in service.

⇒ L_q=\frac{ \lambda^2}{\mu(\mu-\lambda)}

⇒ Plugging the values.

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Mean number of planes in holding and waiting to land = 1.33

3 0
3 years ago
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