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The construction costs (N'000s) and selling prices (N'000s) of new houses in the Coal City were as follows in 1988:
Cost/House Selling Price Number of Houses
30 - 40 45 - 55 18141 - 51 56 - 66 32652 - 62 67 - 77 30063 - 73 78 - 88 175
(a) Find the median cost of houses at Coal City in 1988.
(b) Find the modal selling price of houses at Coal City in 1988.
Suppose normality, determine a 90% confidence interval for population variance.
Determine the probability of exactly one success given Poisson distribution with mean of 2.0.
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Conclude the finite population, correction factor.With the population size of 1,000 and a planned sample size of 200, what is the finite population, correction.
If computing a causal linear regression model of y = a + bX and the resultant r2 is very near zero, then one would be able to conclude that:
If we want to estimate the populations mean travel-to-work time San Francisco residents with a margin of error of 1 minute, what sample size should be used? Assume 95 percent confidence.
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Let's play a game. An urn contains five red, four green and one gold ball other than color, the balls are identical. You are blindfolded and allowed to pick a ball from the urn. Red pays $5, green pays $10 and gold pays $50.
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The price of XYZ Corporation stock is normally distributed all through the year with mean of $42.00 per share and a standard deviation of $2.25 per share. Suppose that the stock is traded 240 days out of the year.
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