In a Certain Normal Distribution, 6 $\sigma.$

question 68

Short Answer

In a certain normal distribution, 6.3% of the area lies to the left of 36 and 6.3% of the area lies to the right of 42.
Find the mean μ and the standard deviation $\sigma.$

---

Definitions:

Payback Period

The amount of time it takes for an investment to generate an amount of income or cash equivalent to the cost of the investment, used to evaluate the efficiency of an investment.

Useful Life

The estimated time period that an asset is expected to be usable for its intended purpose, impacting depreciation calculations.

Discount Rate

The interest rate used to discount future cash flows to their present value, reflecting the time value of money.

Net Present Value

The calculation of the present value of an investment's expected cash inflows and outflows, used to assess the profitability of an investment or project.