Just Read,an Online Retailer of Books,encourages Users to Write Reviews

question 20

Multiple Choice

Just Read,an online retailer of books,encourages users to write reviews of the books they purchase and rate them.This allows potential customers to know more about the books offered for sale.In this example,Just Read uses which of the following strategies?

• A) diversification
• B) product development
• C) social commerce
• D) market segmentation
• E) vertical integration

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Definitions:

Standard Deviation

An index showing the degree of spread or variability among a collection of numbers.

Confidence Interval

A range of values, derived from the statistical analysis of data, that is likely to include the true population parameter with a certain level of confidence.

Sample

A subset of individuals or observations from a population used to estimate parameters or statistics of the whole population.

Mean

The average of a set of numbers, calculated by summing them up and dividing by the number of summands.