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AN ADVERTISEMENT FOR A CAR STATES THAT IT IS 10% MORE

AN ADVERTISEMENT FOR A CAR STATES THAT IT IS 10% MORE

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Author: Christine Farr
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An advertisement for a car states that it is 10% more powerful than its competitor. This is an example ofA.detached statistics B.changing the subject C.ambiguous averages D.suspect samples Reset SelectionPart 2 of 9 -Question 2 of 251.0 PointsIf A and B are any two events with P(A) = .8 and f$P(B|ar{A})= .7f$ then f$P(ar{A}igcap{B})f$ is:A.0.56 B.0.875 C.0.14 D..24 Question 4 of 251.0 PointsFind the variance of the following probability distribution. X P(X)1 0.202 0.153 0.254 0.255 0.15A.1.34 B.1.8 C.0.48 D.1.16 Question 5 of 251.0 PointsWe assume that the outcomes of successive trials in a binomial experiment are:A.random numbers between 0 and 1 B.probabilistically independent C.identical from trial to trial D.probabilistically dependent Reset SelectionQuestion 6 of 251.0 PointsOne of the requirements for a binomial experiment is that there must be a(n) _____ number of trials.A.odd B.random C.fixed D.infiniteQuestion 9 of 251.0 PointsIf Z is a standard normal random variable, then the value z for which P(-z < Z < z) equals 0.8764 isA.0.3764 B.1.54 C.1.16 D.3.08 Reset SelectionQuestion 10 of 251.0 PointsIn a normal distribution, changing the standard deviation:A.makes the curve more or less spread out B.makes the curve more robust C.splits the distribution to two curves D.shifts the curve left or right Reset SelectionQuestion 11 of 251.0 PointsThe average height of flowering cherry trees in a nursery is 11 feet. If the heights are normally distributed with a standard deviation of 1.6, find the probability that a randomly selected cherry tree in this nursery is less than 13 feet tall.A. 0.67 B.0.89 C.0.95 D.0.11 

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