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2 years ago

8

evelyn invests $3200.00 in an account for 9 months at a 5% annual interest rate, what is evelyns total amount in her account at

the end of the term?

1 answer:

tresset_1 [31]2 years ago

6 0

Answer:

3320

Step-by-step explanation:

So, 9 months is 9/12 of a year which is 3/4.

Each month they get 5/12% of their total money, so 9x5/12=3.75%.

3320

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4 years ago

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3 years ago

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:

Option b that is 1.33 is the right choice.

Step-by-step explanation:

Given:

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

Service time = $5$ minute/plane

Mean service rate $(\mu)$ = $\frac{60}{5}$ = $12$ planes/hr

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 $(L_q)$ .

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

⇒ Plugging the values.

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So,

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