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A moment-generating function of X is given by M(t) = (0.25 + 0.75et)4. (a) Find the values of μ and σ2 for X. (b) Calculate P(1 ≤ X ≤ 2).

Among the 16 applicants for a job, 10 have university degrees. A sample of 3 applicants are to be randomly chosen for interviews. Let X be the number of applicants in the sample who have university...

A bag contains 5 coins, one of which has a head on both sides while the other 4 coins are normal. A coin is chosen at random from the bag and tossed 2 times. The number of heads obtained is a random...

In a certain community, 8 percent of all adults over 50 years old have diabetes. If a health service in this community correctly diagnoses 95 percent of all persons with diabetes as having the disease...

It is known from experience that in a certain industry 60percent of all labor-management disputes are over wages, 15 percent are over working conditions, and 25 percent are over fringe issues. Also,...

(a) Consider a group of 3 students. Each student has a birthday that can be any one of the days numbered 1, 2, 3, ..., 365. What is the probability that none of them have the same birthday with each...

i need it for a question i don't know how to do

Help me out please solve it. What information is not needed to solve this problem? Twenty-five percent of the players on the basketball team are taller than Charlie. Half of the players...

Write an equation that relates the number of trees Wangari plants (p)(p)left parenthesis, p, right parenthesis and the time she spends planting them (h)(h)left parenthesis, h, right parenthesis in...

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What is the life expectancy when run at 110 volts? If the bulb has a life expectancy of 2000 hours, what is the voltage applied to the bulb?

write the correct equati for each and solve

I am having a difficult time with probability.

Math word problem I don't really know how to do this one, I might have another problem too that I don't know!

The toll collector st the riverview exit notices that she has the same number of dimes as quarters in her box. If there is a total of $9.80 in the box, and she has only dimes and quarters, how many...

a girl sends an email every 15 minutes, nonstop. Over the course of 2 months, which is also 87,600 minutes, how many ema does she send?

f(x)=3*2^x graph Give range and domain of function

The amount of sunlight penetrating a lakes surface is exponentially related to the depth of the water. In a particular lake the reduction is 18% per foot of depth. 1. write an equation representing...

Angela Invests $1000 in an account paying 4.2% interest compounded continuously. 1. Write an equation representing this situation 2. How much will she have after 6 years?

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