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A zero coupon bond with a face value of $1,000 is issued with an initial price of $430.84 based on semiannual compounding.The bond matures in 20 years. What is the implicit interest, in dollars, for the first year of the bond's life?

. $19.08

b. $25.25

E, $21.47

$18.53

e. $22.56

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Probability

Scores of high school students on national calculus exam were normally distributed with a mean of 86 and a standard deviation of 4.

i. What is the probability that the average score of a sample of five high school students is more than 80? Indicate any necessary assumptions.(3 ma

iii. If the distribution of the scores of high school students was not normally distributed, would your answers to (ii) change? Why?[2 marks]

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Probability

1) A parent wanted to know how many unique arrangements could their mathematically talented baby discover with the set of 9 baby blocks shown below. There are three blocks with sides blue, red, green, and orange, two blocks with sides red and green, and four blocks with all sides black. Blocks are placed in an arrangement (left to right), but also by orientation(90 degree rotations)

a) If block orientation by distinct color matters in addition to order, how many unique patterns can be discovered by the baby?

c) Consider a different restriction with (a) and ignore the restriction given by (b). The new restriction is that no black block may appear on an end and that no more than two black blocks may abut one another. How many unique patterns can be discovered by the baby?

b) Consider the restriction that if two sides abut, red sides must abut red sides, green sides must abut green sides, but black sides can abut any colored side. How many unique patterns can be discovered by the baby?

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Probability

\text { 2. Suppose } X \text { and } Y \text { are r.v.s with } E(X)=7, E\left(X^{2}\right)=70, E(Y)=-2 \text {, and } E\left(Y^{2}\right)=19 \text {. }

\text { (a) Compute } E(6 X-5 Y) \text {. }

\text { (b) Compute var }(-4 Y) \text {. }

(c) If X and Y are independent, find var(X + Y).

(d) If X and Y were not independent, could you find var(X +Y) with the information provided?

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Probability

1. Let X and Y be random variables with the following joint distribution

) Fill in the marginal distributions for X and Y.

\text { Find } \sigma_{X} \text { and } \sigma_{Y}

c) Find Cov(X,Y) and exr-

O Are X and Y independent, why or why not?

) Find the conditional distribution of X given Y = 0.

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Probability

1.Let X be a random variable for an Erlang distribution with rate 0.2 and shape 5.0 What is the expected value of X. (Give 4 decimal places)

2. Let X be a random variable for an exponential distribution with rate 0.35.What is the expected value of X. (Give four decimal places)

3. Let X be a random variable for a standard uniform distribution. What is the probability that X is between 0.15 and 0.6? (Give 4 decimal places)

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Probability

13. This summer, when I was doing gardening, I got some seeds. The packetwith seeds said that 98% of them will germinate. I planted 21 seeds and 18of them germinated.

a. Find a 96% confidence interval for the true proportion of seeds that germinate based on this sample.

b. Does this seem to provide evidence that the claim is wrong?

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Probability

11. My mom calls me a lot. Lets assume that the time between her calls isexponentially distributed with a mean time between calls of 160 minutes.

a. What is the probability that there are no calls within a 90-minute interval?

b. What is the probability that at least one call within a 180 -minute interval?

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Probability

10. The rate of COVID is at 20%. (lets assume that for this problem)

a. What is the probability that the sixth patient who enters the emergency room is the first one with COVID?

b. What is the average number of patients doctors will see without COVID before the first patient with COVID.

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Probability

9. Hospital receives an order for 1500 masks. Warehouse has 5000 but150 of them are defective. The order is filled randomly drawing from the masks in stock. What is the probability that a hospital is sent 5defective masks in the batch of 1500 they received?

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Probability

S.....1.

a) Fill in missing values.

b) Construct 99% confidence interval.

c) If Ha was >12 instead of not = 12, what would p value be then? Rejector do not reject Ho?

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**Use of solution provided by us for unfair practice like cheating will result in action from our end which may include permanent termination of the defaulterâ€™s account.Disclaimer:The website contains certain images which are not owned by the company/ website. Such images are used for indicative purposes only and is a third-party content. All credits go to its rightful owner including its copyright owner. It is also clarified that the use of any photograph on the website including the use of any photograph of any educational institute/ university is not intended to suggest any association, relationship, or sponsorship whatsoever between the company and the said educational institute/ university. Any such use is for representative purposes only and all intellectual property rights belong to the respective owners.

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