If X Is a Binomial Random Variable, Then the Standard

question 36

Multiple Choice

If x is a binomial random variable, then the standard deviation of x is given by

• A) np.
• B) (npq)².
• C) .
• D) npq.

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Definitions:

Different Industries

Sectors of the economy that produce different types or categories of goods and services.

Entry Barriers

Obstacles that make it difficult for new competitors to enter a market, which can include high startup costs, regulatory requirements, and strong brand loyalty among existing customers.

Dominant Firms

Companies that have a major share of sales in a particular market, giving them significant power over the market price.

Monopolistic Competition

A market structure where many companies sell products that are similar but not identical, allowing for competition based on quality, price, and marketing.