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1. (a) Prove that the some of the squared deviations is least when taken from the mean.
(b) Dispersion is known as the average of the second order. Give reasons.
2. (a) Which measure of dispersion would be most useful for:
(i) a social worker,
(ii) an actuary.
(iii) A public relations man for industry, and
(iv) a spokesman for organised labour?
(b) What is coefficient of dispersion? What purpose does it serve?
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Inmates who are in the state facility and 9 who have legal satisfaction scores of 5 or more. How do determine the probability for this because I have come up weird numbers.
Determine the optimal shipments between the European ports and the warehouses and the distribution centers to minimize total transportation costs
Weights are distributed normal with a mean of 132 pounds and a standard deviation of 27.4 pounds. In a random sample of 150, how many of them would be expected to weigh between 100 and 115 pounds?
two vehicles in succession are observed moving through the intersection of two streets.a list the possible outcomes
What is the relationship between the sign of the correlation coefficient and the sign of the slope of the regression line?
1. in a recent survey of 4513 college undergraduates 20 reported having fallen asleep in class. to test this
A clothing manufacturer tests an SRS of 3 specimens of each fabric. (a) What is the probability that the mean breaking strength of the 3 untreated specimens exceeds 49 pounds.
an overseas shipment of 5 foreign automobiles contains 2 that have slight paint blemishes. if an agency receives 3 of
The number of ferromagnetic artifacts for each plot is determined. The variable in this information is number of ferromagnetic artifacts per 100 square meters.
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