Advertising costs: The amounts spent (in billions) on media advertising in the United States for a sample
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Advertising costs: The amounts spent (in billions) on media advertising in the United States for a sample of categories are presented in the following table.
a. Find the mean amount spent on advertising.
b. Find the median amount spent on advertising.
c. Find the sample variance of the advertising amounts.
d. Find the sample standard deviation of the advertising amounts.
e. Find the first quartile of the advertising amounts.
f. Find the third quartile of the advertising amounts.
g. Find the 40th percentile of the advertising amounts.
h. Find the 65th percentile of the advertising amounts.
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