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White raven [17]
3 years ago
10

Meagan invests $1,200 each year in an IRA for 12 years in an account that earned 5% compounded annually. At the end of 12 years,

she stopped making payments to the account, but continued to invest her accumulated amount at 5% compounded annually for the next 11 years. A. [3 pts] What was the value of the IRA at the end of 12 years? B. [2 pts] What was the value of the investment at the end of the next 11 years?
Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
5 0

Answer:

12000

Step-by-step explanation:

12000

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Simple question just answer correctly to get brainleist and 10 pts! :)
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Answer:

d.  The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.

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Barron's reported that the average number of weeks an individual is unemployed is 17.5 weeks. Assume that for the population of
Olin [163]

Answer:

P(16.5

And using the normal standard table or excel we find the probability:

P(-1.768< Z< 1.768) = P(Z

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the avergae number of weeks an individual is unemployed of a population, and for this case we know the distribution for X is given by:

X \sim N(17.5,4)  

Where \mu=17.5 and \sigma=4

Since the distribution for X is normal then, the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu= 17.5, \frac{\sigma}{\sqrt{n}}= \frac{4}{\sqrt{50}}=0.566)

We select a sample of n =50 people. And we want to find the following probability

P(16.5

And using the normal standard table or excel we find the probability:

P(-1.768< Z< 1.768) = P(Z

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