Assignment

Exam 2 Ch.1 to Ch.6 Use the following(a) scenario for the next 3 questions. cipher that monthly sales volume for a yield is commonly distributed, with a mean of 500 units and a standardized divergency of 50 units. If x denotes the anatomy of units sold in a month, what are the following probabilities: 1) P(x < 450) = P (x-µ?<450-50050) = P (z < -1) = 0.1587 2) P(x > 600) P (x-µ?>600-50050) = P(z > 2) = P(z < 2) = 1 0.97725 = 0.02275 3) P(400 < x < 450) = P (400-50050<x-µ?<450-50050) = P (-2 < z < -1) = P (z < -1) P (z < -2) = 0.1587 0.0228 = 0.1359 The next 2 questions bear upon to the following situation. amid the hours of 1:00 and 5:00 PM the average number of shout calls per little on a cell phone bulk large is 2.5. 4)What is the fortune that during one ill-tempered minute there lead be more than 6 phone calls? P(Y>6) =1-p(Y<6)=1[e^-2.5(2.5^0/0! + 2 .5^1/1! + 2.5^2/2 = 0.42021 5)What is the run a risk that during one particular minute there go away be less than 5 phone calls? P(Y<5) = e^-2.5(2.5^0/0! + 2.5^1/1! +2.5^2/2! +2.5^3/3! + 2.5^4/4!) = 0.891178 The next 2 questions refer to the following scenario.

Consider an test of flipping a fair gold 50 times. Assign a random variable x, where the harbor of x is equal to the number of heads observed in the flips. 6)What is the fortune of observing 30 or more heads in 50 flips? 0.5 so = (0.5)^50*(50C30+50C31+50C32..+50C50) 7)What is the probability of observing more than 35 tails in 50 flips? =( 0.5)^50*(50C14+50C13+50C12..50C0) Use the! following scenario to answer the next 3 questions. Suppose a school-age child in Business Statistics has no been attending class this keister but decides to take the tryout anyway. If he randomly guesses on each of the 20 questions, then he has a 1 out of 5 chance of getting a adjust answer, since it is multiple choice trial with choices a, b,...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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