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Fire! An insurance company estimates that it should make an annual profit of $150 on each homeowner s policy written, with a standard deviation of $6000.
a) Why is the standard deviation so large?
b) If it writes only two of these policies, what are the mean and standard deviation of the annual profit?
c) If it writes 10,000 of these policies, what are the mean and standard deviation of the annual profit?
d) Do you think the company is likely to be profitable? Explain.
e) What assumptions underlie your analysis? Can you think of circumstances under which those assumptions might be violated? Explain.
A teacher asked each of her students how many novels they had read in the previous six months. The results are shown below. Construct a frequency table for the number of novels read
Clearly a straight line model does not accurately describe what is going on with this data. Does this mean there is no relationship between income and time?
dr. cardenas studied political attitudes among di erent groups of 20- 40- and 60- year-olds. political attitudes were
A group of six people play the game of "odd person out" to determine who will buy refreshments. Each person flips a fair coin.
Quality control. A consumer organization estimates that 29% of new cars have a cosmetic defect, such as a scratch or a dent, when they are delivered to car.
Find the area under the normal distribution curve to the right of z = -1.03.
the fill volume of an automated filling machine used for filling cans of carbonated beverage is normally distributed
Calculate the mean and standard deviation of this probability distribution. Give a brief interpretation of the values of the mean and standard deviation.
let fx ae-2x - e-3x for x gt or equal to 0 and fx 0 elsewhere. find a so that fx is a probability density
1) According to Galileo, what are his enemies motives and why do they use religious arguments against him? 2) According to Galileo, why is it dangerous to apply passages of Scripture to science? 3) To Galileo, how does nature differ from the Bible as..
the personnel director of a large corporation wishes to study absenteeism among clerical workers at the corporations
the total blood cholesterol concentrations in mgdl are shown below for a random sample of six people. in the table
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