b. What is the distribution of ? - N c. For a single randomly selected movie, find the probability that this movie's production cost is between 67 and 71 million dollars. d. For the group of 50 movies, find the probability that the average production cost is between 67 and 71 THE

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A: The data shows the age of world leaders on their day of inauguration.

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A: xy19801250198517501990230019912600199224001993260019942800199528001996290019983000

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A: Given data is

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A: Mean()=66standard deviation()=18sample size(n)=50

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A: From the above given data the following solution is provided below:

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A: P(A)=0.45P(B)=0.3P(A B)=0.1

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A: Mean()=12Standard deviation()=4

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A: Mean=66, Standard deviation=16

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Q: 14. Draw a polygon for the distribution of scores shown in the following table. X 65432 f 2 532 -

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A: mean=15, standard deviations=5.5, n=32

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A: mean==170standard deviation==20

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Q: MONTH January February March April SALES 22,000 21,000 SALES 102,00 33,00 July 84,00 August 46,00…

A: MonthSales…

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A:

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A:

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