This is done by connecting a device called a modem to the digital computer. This process of converting a digital signal to an analog signal is known as modulation. On the receiving end, the incoming analog signal is converted back to digital form in a process known as demodulation.
Answer:
SD = 0.0740270 or 7.40270 percent rounded off to 7.403 percent
Explanation:
To calculate the standard deviation of the investment, we must first calculate the expected or mean return of the investment. The expected or mean return can be calculated as follows,
r = pA * rA + pB * rB + ... + pN * rN
Where,
- pA, pB, ... represents the probability of state occurrence
- rA, rB, ... represents return A, return B and so on under each state
r = 0.2 * 0.16 + 0.4 * 0.12 + 0.2 * 0.05 + 0.2 * -0.05
r = 0.08 or 8%
The formula to calculate the standard deviation of a stock/investment is as follows,
SD = √pA * (rA - r)² + pB * (rB - r)² + ... + pN * (rN - r)²
SD = √0.2 * (0.16 - 0.08)² + 0.4 * (0.12 - 0.08)² + 0.2 * (0.05 - 0.08)² + 0.2 * (-0.05 - 0.08)²
SD = 0.0740270 or 7.40270 percent rounded off to 7.403 percent
Question 2 options are;
- government
- market
- firm
- business sector
Answer:
1. microeconomics concentrates on the behavior of individual consumers and firms, while macroeconomics focusses on the performance of the entire economy.
2. government.
Explanation:
1. Indeed, the government in a command economy (like China) makes most economic decisions itself or at least strongly influences how the decisions are made.
2. We note that the word 'macro' indicates large scope, while 'micro' indicates a smaller scope. And so, the difference is that microeconomics concentrates on the behavior of individual consumers and firms, while macroeconomics focusses on the performance of the entire economy.
Answer:
a. A Strategic budget will be used by the upper management in planning for the next five years.
b. A flexible budget will be used by a store manager who wants to plan for different levels of sales.
c. A Cash budget will be used by an accountant who wants to determine whether the company has sufficient funds to cover expenses.
a. A Master Budget will be used by a CEO who wants to make companywide plans for the next year.
Explanation:
- Strategic budget, is finnancial planing to achieve the long term goals of the company.
- flexible budget is used for different level of sales volume.
- Cash budget usted for forescast the cash balance.
- Master Budget uses a schedule to present financial statements.
