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vovangra [49]
3 years ago
6

Charlie’s portfolio has an expected annual return at 10%, with an annual standard deviation at 12%. Assume his investment return

s follows a normal distribution.What is the probability that the actual return will be between the mean and one standard deviation above the mean?Use 2 decimal points.
Mathematics
1 answer:
Deffense [45]3 years ago
3 0

Answer:

There is a 34.13% probability that the actual return will be between the mean and one standard deviation above the mean.

Step-by-step explanation:

This is problem is solving using the Z-score table.

The Z-score of a measure measures how many standard deviations above/below the mean is a measure. Each Z-score has a pvalue, that represents the percentile of a measure.

What is the probability that the actual return will be between the mean and one standard deviation above the mean?

One measure above the mean is Z = 1

The mean is Z = 0

This means that this probability is the pvalue of Z = 1 subtracted by the pvalue of Z = 0.

Z = 1 has a pvalue of 0.8413.

Z = 0 has a pvalue of 0.50.

This means that there is a 0.8413-0.50 = 0.3413 = 34.13% probability that the actual return will be between the mean and one standard deviation above the mean.

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Step-by-step explanation:

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8 0
2 years ago
Evaluate the following expression if a=-9, b=-7,c=9 and d=3<br> 2cd + 3ab =
stepladder [879]

Answer:

<h3>The answer is 243.</h3>

Step-by-step explanation:

To evaluate the expression substitute the values of a , b , c and d into the above expression

a = - 9

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So we have

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We have the final answer as

<h3>243</h3>

Hope this helps you

7 0
3 years ago
A pet store 145 bags of beef flavored dog food and 263 bag of chesse flavored dog food how many bags of dog food where sold
Kazeer [188]

Answer:

408 bags of dog food

Step-by-step explanation:

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3 0
3 years ago
What is a parallel line to y= -2/3x+3
Natali5045456 [20]

Answer:

-2/3

Step-by-step explanation:

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parallel lines always have the same slope and different y-intercepts

a parallel line could be y=-2/3 +15

4 0
3 years ago
Can anyone help me please, I need to figure out the value of n with work shown
Dmitry [639]

Answer:

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Step-by-step explanation:

This is a right triangle, and so the Pythagorean Theorem applies:

x^2 + 8^2 = 17^2

Solving for x^2:  17^2 - 8^2 = 289 - 64 = 225, and so x = 15.

n = 15

4 0
3 years ago
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