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2 years ago

I need help with 5 plz also explain how to get it.

Mathematics

1 answer:

blagie [28]2 years ago

5 0

Sorry but i did not learn thiz

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Macy deposited $25,000 in a money market account earning 2.5% interest, compounded semiannually. What is Macy's return on this i

Irina-Kira [14]

After 4 years the rate would have happened 4 times making the initial deposit increase 10%. 10% of 25000 is 2500. So 25000 plus 2500 is $27500.

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3 years ago

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Please draw and label two perpendicular line segments KL and MN

muminat

So draw a cross! One line segment is KL and the other Mn

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2 years ago

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In 1898 L. J. Bortkiewicz published a book entitled The Law of Small Numbers. He used data collected over 20 years to show that

attashe74 [19]

Answer:

(a) The probability of more than one death in a corps in a year is 0.1252.

(b) The probability of no deaths in a corps over 7 years is 0.0130.

Step-by-step explanation:

Let <em>X</em> = number of soldiers killed by horse kicks in 1 year.

The random variable $X\sim Poisson(\lambda = 0.62)$ .

The probability function of a Poisson distribution is:

$P(X=x)=\frac{e^{-\lambda}\lambda^{x}}{x!};\ x=0,1,2,...$

(a)

Compute the probability of more than one death in a corps in a year as follows:

P (X > 1) = 1 - P (X ≤ 1)

= 1 - P (X = 0) - P (X = 1)

$=1-\frac{e^{-0.62}(0.62)^{0}}{0!}-\frac{e^{-0.62}(0.62)^{1}}{1!}\\=1-0.54335-0.33144\\=0.12521\\\approx0.1252$

Thus, the probability of more than one death in a corps in a year is 0.1252.

(b)

The average deaths over 7 year period is: $\lambda=7\times0.62=4.34$

Compute the probability of no deaths in a corps over 7 years as follows:

$P(X=0)=\frac{e^{-4.34}(4.34)^{0}}{0!}=0.01304\approx0.0130$

Thus, the probability of no deaths in a corps over 7 years is 0.0130.

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2 years ago

PLSSSS HELPPP<br><br> 4 ¼ divided by 2 ½

notsponge [240]

Answer:

1.7 or 1 7/10

Step-by-step explanation:

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2 years ago

If it were two hours later,it would be half as long until midnight as it would be if it were an hour later. what time is it now.

mafiozo [28]

Answer:

its 10 am I think

Step-by-step explanation:

it says 2 hours until midnight. 12 - 2 = 10

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2 years ago

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