Question

In: Economics

WTVCA Inc. may invest in new equipment and there are three possible outcomes with the following...

WTVCA Inc. may invest in new equipment and there are three possible outcomes with the following new present values of $48,570, $33,214 and $15,989, respectively. The outcomes have probabilities of 0.3, 0.5, and 0.2, respectively. Calculate risk (measured by the standard deviation) associated with this proposal.

Solutions

Expert Solution

Let X be the New present values. Let P(x) be the probabilities associated with each present value.

X 48,570 33,214

15,989

P(X) 3/10 5/10 2/10

Stanadard Deviation=

Variance of X = E(X2) - [E(X)]2

E(X) means the expected value of X . E(X2) means expected value of X2.

To find the E(X), we will first Mutilply each X with its probability i.e P(X) and then find the summation pof these products.

X 48570 33,214 15989
P(X) 3/10 5/10 2/10
X* P(X) 14,571 16,607 3197.8

E(X2) can be found using the same formula used in finding E(X) . We need to know one thing before that. The chances or probability of X2 taking place will be same as the chances of X taking place. P(X) = P (X2 ).

X 48570 33,214 15989
P(X) 3/10 5/10 2/10
X2 2,359,044,900 1,103,169,796 255,648,121
X2 P(X) 707,713,470 551,584,898 51,129,624.2

=

=

=

  

The risk associated with is of $11,346.0286 .


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