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2 years ago

UHH I NEED HELP PLSSS , WILL MARK BRAINLIEST

Mathematics

1 answer:

zzz [600]2 years ago

8 0

Answer:

61.2

Step-by-step explanation:

i took the quiz it was a quiz for me but i dont know for you

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Stock A ‘s returns have a standard deviation of 0.5, and stock B’s returns have standard deviation of 0.6.The correlation coeffi

galben [10]

Answer:

The variance of the profile is 0.2179.

Step-by-step explanation:

We are given the following in the question:

$\sigma_A = 0.5\\\sigma_B = 0.6\\\rho_{A,B} = 0.5\\w_A = 70\% = 0.7\\w_B = 30\% = 0.3$

Variance of portfolio is given by:

$w_A^2\sigma_A^2 +w_B^2\sigma_B^2 + 2w_Aw_BCov_{A,B}$

$Cov_{A,B} = \rho_{A,B} \times \sigma_A \times \sigma_B \\=0.5\times 0.5 \times 0.6\\=0.15$

Putting values, we get,

$w_A^2\sigma_A^2 +w_B^2\sigma_B^2 + 2w_Aw_BCov_{A,B}\\=(0.7)^2(0.5)^2 + (.3)^2(0.6)^2 + 2(0.7)(0.3)(0.15)\\=0.2179$

Thus, the variance of the profile is 0.2179.

4 0

2 years ago

21/√7-5√7/2 solve it

umka21 [38]

Answer:

√72

Decimal Form:

1.32287565…

Step-by-step explanation:

To subtract fractions, find the LCD and then combine.

5 0

1 year ago

What is the unit rate for 3 boxes for $5

Andreas93 [3]

I think the answer to your question is
3
/
5

6 0

2 years ago

Solve the following word problem. A man travels from town X to town Y at an average rate of 60 mph and returns at an average spe

sladkih [1.3K]

Answer:

d = 1650 miles

Step-by-step explanation:

Let the distance be d

Then the time in travel is

d/60 one way, d/50 on return

The round trip would take 1/2 hours longer if the average speed was 55 mph

d/60 + d/50 = 2d/55 + 1/2
d/60 + d/50 - 2d/55 = 1/2

LCM(60,50,55) = 11*12*5*5 = 3300

55d/3300 + 66d/3300 - 120d/3300 = 1/2
d/3300= 1/2
d = 1650 miles

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2 years ago

What is the value of the output when the input is 18?

ludmilkaskok [199]

Answer:

Any number less than greater than or equal to 18

Step-by-step explanation:

4 0

2 years ago