# Statistics for Busuiness

*label*Mathematics

*timer*Asked: Jan 28th, 2019

*account_balance_wallet*$25

### Question Description

- The random variable
**x**represents the**number of boys**in a family of**three**children. Assuming that boys and girls are equally likely

- Identify the sample space of the probability experiment (use
**B**for boy and**G**for girl.) - Construct a probability distribution
- Graph the probability distribution

2. A firm believes the internal rate of return for its proposed investment can best be described by a normal distribution with **mean** **44%** and **standard deviation 3%**.

- What is the probability that the internal rate of return for the investment will be between 41% and 47%?
- What is the probability that the internal rate of return for the investment will be more than 44%?
- What is the probability that the internal rate of return for the investment will be less than 35%? Use the Excel templet for this part.
- What is the probability that the internal rate of return for the investment will be more than 35%? Use the Excel templet for this part.

** The assignment is to be worked using the Excel spread sheet given in the attachment.

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