The options provided are incorrect. The correct answer is given below
Answer:
New Portfolio beta = 1.125
Explanation:
The portfolio beta is the function of the weighted average of the individual stock betas that form up the portfolio. The formula to calculate the beta of a portfolio is as follows,
Portfolio beta = wA * Beta of A + wB * Beta of B + .... + wN * Beta of N
Where,
- w represents the weight of each stock in the portfolio
New Portfolio beta = 50000/200000 * 0.8 + 50000/200000 * 1 +
50000/200000 * 1.2 + 50000/200000 * 1.5
New Portfolio beta = 1.125
<span>The reserve requirement, which is also referred to as the cash reserve ratio, is 25 percent. This is calculated by subtracting the $6,000 loaned out from the bank's $8,000 in deposits, yielding a reserve of $2,000. The reserve requirement is calculated by dividing $2,000 by $8,000.</span>
Answer:
Immediately after the fifth deposit the individual will have $54,950 in his account.
Explanation:
For each year you have to calculate the total savings that the indivual has in the account.
The first year, denoted by 
, the individual deposits $20,000 in his account. At the end of the year the interests are accrued on that principal, and the individual also deposits $5,000 more that will bear interests next year. So we have:
And for each year we calculate the total savings accumulated, using the savings of the previous year as this period's principal:
Therefore the answer is $54,949.98.
In general the formula used for each period is the following:
Where:
are the total savings for the current period,
are the total savings from last period,
is the interest rate,
are the monthly deposits made into the savings account.
We further know that 
.
