If X Is Normally Distributed with Mean 12 and Standard

question 28

Multiple Choice

If x is normally distributed with mean 12 and standard deviation 2,then P(x  9) is

• A)P(z  9/10).
• B)P(z   3/2)
• C)P(z  2/3)
• D)P(z   3/4)

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Definitions:

Marketing ROA

Return on Advertising Spend, a measure used to evaluate the effectiveness of a marketing campaign by comparing the revenue generated by the advertising to the cost of the advertising itself.

Marketing ROI

Stands for Return on Investment in marketing, which measures the profitability of marketing efforts by comparing the revenue generated to the costs of marketing activities.

Marketing Response

The reaction of consumers or the target market to the promotional efforts of a company.

Marketing ROI

A measure of the profitability of marketing activities, calculated by dividing the net profit from a marketing initiative by its costs.