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
Electronic banking provides safety of your money, and allows you to monitor transactions.
The answer is formal group. A formal group is a cluster or
group of individuals, who decided to work together to achieve and reach a specific
goals. Formal groups are made of individuals committed to fulfill tasks.
According to the given example, this group is created to produce and develop a
new series of skincare products specifically for the individuals over the old
age of sixty (60), the example states that the group is created to develop a
new-line of skincare products, so it is to be considered that the group being
referred to is the formal group, it has indicated that there is a specific goal
that is set for different individuals to come together and fulfill a specific
goal.
<span>Inflation is good because it keeps the economy growing as wages increase and demand for goods goes up, but if inflation gets high then the economy can become overheated when prices go up too fast and people can't afford goods. The Federal Reserve Bank, if you're in the USA, will then raise interest rates to make loans more expensive and rewarding people for not spending money, which slows down the economy back to a healthy state.</span>
C. the attitude of the people working at a company
