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3 years ago

For the function: g(x)= 3 - 8 (1/4)^2-x

Mathematics

1 answer:

Alla [95]3 years ago

7 0

Answer:

bye

Step-by-step explanation:

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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:

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

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

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

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

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

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

$Coefficient~of~Variation = \frac{11.39}{20.8} = 0.55$

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

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

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

$Coefficient~of~Variation = \frac{10.13}{12.4} = 0.82%$

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.

6 0

3 years ago

The perimeter of a square is represented by the expression 4(4.3 - 6). Which statement is true?O The perimeter can also be repre

lana66690 [7]

the perimeter is:

4(4x - 6)

Applying distributive property:

4(4x) - 4(6)

16x - 24

Then, the perimeter can also be represented by 16x - 24 because 4(4x - 6) can be simplified to 16x - 24

7 0

1 year ago

A line has slope -3/4 and y intercept 5 which answer is the equation of the line

dolphi86 [110]

Answer:

y= -3/4x +5

Step-by-step explanation:

formula: y=mx+b

m= slope

x= variable

b= y-intercept

plug in the numbers into the formula.

y= -3/4x +5

8 0

3 years ago

Which logarithmic equation is equivalent to the exponential equation below? E^a=28.37

Alex_Xolod [135]

1. To solve this problem, it is important to know that the logarithmic functions and the exponential functions are inverse. Then, you have:

e^a=28.37
 a=ln(28.37)

2. Therefore: Which logarithmic equation is equivalent to the exponential equation e^a=28.37? As you can see, the answer for this question is:

a=ln(28.37)

7 0

3 years ago

Read 2 more answers

20. The table shows the numberof days you keep a rented movie before returning it and the total cost of renting the

Harlamova29_29 [7]

Step-by-step explanation:

According to given table we have pairs of points:

(4, 6.00), (5, 8.25), (6, 10.50)

The rate of change is:

(8.25 - 6.00)/(5 - 4) = 2.25

(10.50 - 8.25)/(6 - 5) = 2.25

It is 2.25 and the meaning is:

Rental per day is $2.25

5 0

2 years ago