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The home prices (in thousands of dollars) in a county located in the upper mid- Atlantic region of the United States is a lognormal random variable with a median of 403 and a mode of 245.
(i) What percentage of the homes in this region cost more than $500,000?
(ii) If a home is considered "a?ordable" in this region if it costs between $150,000 and $300,000, what percentage of homes fall into this category?
(iii) Plot the pdf for this random variable. Compute its mean and indicate its value on the plot along with the value given for the median. Which seems to be more "representative" of the central location of the distribution, the mean or the median?
an industrial psychologist wishes to study the effect of motivation on sales in a particular firm. 24 new salespersons
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the data in this question come from from sen and srivastava exercise 2.12 2 and can be used to model car ownership
A normal distribution with a mean time of 2:00pm and a standard deviation of 15 minutes. What is the probability that the mail will arrive later than 2:30pm?
if the level of confidence is increased while the sample size remains the same how will the width of a confidence
Horizon Wireless, a cellular telephone company, is expanding into a new era. Relay towers are necessary to provide wireless telephone coverage to the different areas of the city.
Calculate percentage and sectarian angle of each program - construct a frequency distribution and draw a histogram and frequency polygon.
A typical problem statement is correlation research is _____________
a textbook publisher puts out 72 new books each year which are classified as elementary intermediate and advanced. the
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intelligence quotient iq in a certain population is normally distributed with a mean of 100 and standard deviation of
Formulate a payoff table that specifies the contribution to profit (in dollars) from the sale of the tennis shoes by this department store chain for each possible purchase decision.
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