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pav-90 [236]
3 years ago
12

You randomly choose one of the tiles. Without replacing the first tile, you randomly choose a second tile. Find the probability

of the compound event. Write your answer as a fraction or percent rounded to the nearest tenth. The probability of choosing a green tile and then a blue tile is?

Mathematics
1 answer:
Lesechka [4]3 years ago
3 0

Answer:

4/21

Step-by-step explanation:

I got the first probability and the second probabilty then multiplied them together.

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Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for t
rjkz [21]

Answer:

COV (all stocks) = 0.55

COV (stocks and bonds) = 0.82

Step-by-step explanation:

Coefficient of Variation is used to measure variability.

It is defined as the ration of standard deviation and the mean.

It can be used to compare variability of two population or two samples.

Formula:

\text{Coefficient of Variation} = \displaystyle\frac{\text{Standard Deviation}}{\text{Mean}}

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}

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x: 14, 0, 39, 25, 32, 27, 28, 14, 14, 15

Mean = \frac{208}{10} = 20.8

Standard~Deviation = \sqrt{\frac{1169.6}{9} } = 11.39

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y = 6, 2, 29, 17, 26, 17, 17, 2, 3, 5

Mean = \frac{124}{10} = 12.4

Standard~Deviation = \sqrt{\frac{924.4}{9} } = 10.13

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Since coefficient of variation of x is less compared to y, thus it could be said bonds does not reduce overall risk of an investment portfolio.

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Step-by-step explanation:

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aleksandrvk [35]

Answer:

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the answer should be 15 because, if one cup is 120 calories or 8 fluid ounces is 120 calories,  divide 120 by 8 so you can find how many calories one fluid ounce is.

8 0
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