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4 years ago

If the Federal Reserve lowers the federal funds rate, what will happen to bank savings accounts? (4 points)

Mathematics

1 answer:

mariarad [96]4 years ago

8 0

The interest rate offered would decrease. The federal reserve sets the rates to help prevent inflation, deflation etc

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If I have 80 carrots and divide it by 5

lidiya [134]

Answer:

Step-by-step explanation:

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3 years ago

Is there a answer to this

hodyreva [135]

Answer:

mean=71

Step-by-step explanation:

Mean x¯¯¯x¯

Median x˜x~

Mode

64, 83, 79, 38, 81, 90, 59, 93, 70, 73, 71, 51

Range

Minimum

Maximum

Count n

Sum

852

Quartiles

Quartiles:

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Q2 --> 72

Q3 --> 82

Interquartile

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Outliers

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3 years ago

Random variables X Poisson~ ( a) ,Y Poisson ~ ( a) . X and Y are independent. If 2 1, 2 1. U =2X+ Y-1, V=2X- Y +1. Find: ) Cov (

german

By definition of covariance,

$\mathrm{Cov}(U,V)=E[(U-E[U])(V-E[V])]=E[UV-E[U]V-UE[V]+E[U]E[V]]=E[UV]-E[U]E[V]$

Since $U=2X+Y-1$ and $V=2X-Y+1$ , we have

$E[U]=2E[X]+E[Y]-1$

$E[V]=2E[X]-E[Y]+1$

$\implies E[U]E[V]=(2E[X]+E[Y]-1)(2E[X]-(E[Y]-1))=4E[X]^2-(E[Y]-1)^2=4E[X]^2-E[Y]^2+2E[Y]-1$

and

$UV=(2X+Y-1)(2X-(Y-1))=4X^2-(Y-1)^2=4X^2-Y^2+2Y-1$

$\implies E[UV]=4E[X^2]-E[Y^2]+2E[Y]-1$

Putting everything together, we have

$\mathrm{Cov}(U,V)=(4E[X^2]-E[Y^2]+2E[Y]-1)-(4E[X]^2-E[Y]^2+2E[Y]-1)$

$\mathrm{Cov}(U,V)=4(E[X^2]-E[X]^2)-(E[Y^2]-E[Y]^2)$

$\mathrm{Cov}(U,V)=4V[X]-V[Y]=4a-a=\boxed{3a}$

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4 years ago

Which number is equivalent to 2.108¯¯¯¯¯¯¯¯?

antoniya [11.8K]

Answer:

4.443664/2

Step-by-step explanation:

Mark me brainliest

4 0

2 years ago

Need help ASAP! Looking for someone to show work, it’s completely fine if you don’t tho!

andreyandreev [35.5K]

D since (-5 x -5) = 25 and (7 x -8) = -56. Add 25 and -56 and your answer is D. -31

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3 years ago