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1. Cars. A survey of autos parked in student and staff lots at a large university recorded the make, country of origin, type of vehicle (car, van, SUV, etc.), and age.
2. Vineyards. Business analysts hoping to provide information helpful to grape growers compiled these data about vineyards: size (acres), number of years in existence, state, varieties of grapes grown, average case price, gross sales, and percent profit.
What is the expected number of students who have registered on a pass/fail basis? What is the probability that more than three are registered on a pass/fail basis?
Be sure to show whether you use the t- or z- value, and what value you use. Interpret the confidence interval in a single sentence. In another sentence, state why you used either the "t" or the "z".
A discrete-time linear filter has a unit pulse response. - The input to this filter is a random sequence with uncorrelated samples. - Show that the output PSD is real and non-negative.
two points along a straight stick of length 39 cm are randomly selected. the stick is then broken at those two points.
Xelia decides to diversify its product portfolio by introducing 4 different versions of its control systems
let a and b be 2 sets and let pa and pb denote the probabilities assigned to the 2 sets. if we know that a is a subset
Let X1,..., Xn be a random sample from the truncated exponential distribution with pdf re-(x-θ), x ≥ θ
Suppose that the population of heights of male college students is approximately normally distributed with mean m of 68 inches and standard deviation s of 3.75 inches. A random sample of 16 heights is obtained.
the weights of bags of candy are normally distributed with a mean of 28 ounces and a standard deviation of .28 ounce.
What is the probability that none of the three parents condone spanking as a regular form of punishment for their children?
The manager decides one evening to overbook and accept 20 reservations when only 15 tables are available. What is the probability that more than 15 parties will show up?
A researcher claims that the average age of people who buy lottery tickets is 70. A sample of 30 is selected and their ages are recorded as shown below.
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