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Do you tailgate the car in front of you? About 45% of all drivers will tailgate before passing, thinking they can make the car in front of them go faster. Suppose that you are driving a considerable distance on a two-lane highway and are passed by 7 vehicles.
(a) Compute the expected number of vehicles out of 7 that will tailgate.
(b) Compute the standard deviation of this distribution. (Round your answer to two decimal places.)
Under the assumption that the food expert is correct, what would be the probability of a "taste-off" in which 110 or more of the subjects preferred soft drink A?
manipulation of independent variables in order to unravel causal relationships is unacceptable from a scientific point
A DVD rental store wants to know what proportions of its customers are under age 21. A simple random sample of 500 customers was taken, and 375 of them were under age 21. Presume that the true population proportion of customers under age 21 is 0.6..
Let X1, ..., Xm be i.i.d. having the uniform distribution U(0, ?x) and Y1, ..., Yn be i.i.d. having the uniform distribution
Zero Day reports continue to fall out of favor. Why is this the case and what are the security implications?
Amenities. A check of dorm rooms on a large college campus revealed that 38% had refrigerators, 52% had TVs, and 21% had both a TV and a refrigerator.
How much does income increase per child for women? (round to nearest dollar, if it decreases put it in as a negative value)
A data source generates hexadecimal characters. Let X be the integer value corresponding to a hex character. Suppose that the four binary digits in the character are independent and each is equally likely to be 0 or 1.
At the 0.01 significance level, can we conclude that less than 92% of the orders are delivered in less than 10 minutes?
If two items are selected at random from the lot, what is the probability that both will be defective?
Regression line drawn as y = c + 1075x, when x was 2, and y was 239, given that y intercept was 11. Calculate the residual
The station was successful in getting contributions from 26% of the members they e-mailed but only from 15% of those who received the request by regular mail.
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