Answer:
Persists because economic wants exceed available productive resources.
Explanation:
According to Lionel Robbins, Economics is the science which studies human behavior as a relationship between ends and scarce means which have alternative uses.
The problem of scarcity is that our wants are always beyond what we can produce with our resources.
Economics is the solution to this problem of what resources to use, how best to use them, and when to use them.
Because of this scarcity, all people have to make choices. When making choices, we assess the opportunity cost or the alternative forgone.
The opportunity cost of taking action is what we could have got if we had taken an alternative action.
A=p(1+rt)
A=future value
P=present value
R=interest rate
T=time
If you want to find present value
P=A/(1+rt)
If you want to find interest rate
R=[(A/p)-1]divided by t
Finally if you want to find time
T=[(A/p)-1]divided by r
Answer: 0.000903
Explanation:
Expected return is the sum of the probability that the other returns will happen.
= (13% * 83%) + (5% * 17%)
= 10.79 % + 0.85%
= 11.64%
Variance = ((Return during boom - Expected return)²*probability of boom) + ((Return during recession - Expected Return)²*probability of recession)
Variance = ((13% -11.64%)² * 83%) + (5% - 11.64%)² * 17%)
= 0.0001535168 + 0.0007495232
= 0.000903
