X Is a Normally Distributed Random Variable with a Standard

question 73

Multiple Choice

X is a normally distributed random variable with a standard deviation of 3.50. Find the mean of X when 64.8% of the area lies to the left of 10.33. (Note: the diagram is not necessarily to scale.)

• A) 7.1
• B) 8.7
• C) 9.0
• D) 10.2

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Definitions:

Income from Operations

The earnings generated from a company's core business operations, excluding any income from investments or other non-operational sources.

Net Sales

Revenue from sales after deducting returns, allowances for damaged goods, and discounts.

Income Before Taxes

Earnings of a company before income tax expense is deducted, indicating its profitability from operations.

Operating Expenses

Costs associated with running a company’s day-to-day operations, such as salaries, rent, and utilities, but not including cost of goods sold.