Assignment

Exam 2 Ch.1 to Ch.6 Use the interest scenario for the next 3 questions. cipher that monthly sales volume for a harvest is commonly distributed, with a mean of 500 units and a exemplification 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 mend to the following situation. amid the hours of 1:00 and 5:00 PM the average number of headphone calls per little on a cell phone pillar is 2.5. 4)What is the fortune that during one ill-tempered minute there result 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 testament 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 collide with 50 times. Assign a random variable x, where the observe of x is equal to the number of heads observed in the flips. 6)What is the hazard 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 i n 50 flips? =(0.5)^50*(50C14+50C13+50C12.! .50C0) Use the following scenario to answer the next 3 questions. Suppose a pupil in Business Statistics has no been attending class this draw off 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 change by reversal answer, since it is multiple choice trial with choices a, b,...If you want to get a full essay, order it on our website: BestEssayCheap.com

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