QUESTION IMAGE
Question
a company has an opportunity to bid on three contracts. determine which would be the best investment given the information in the table below.
probability of profit and loss by contract
| contract | profit, probability of profit | probability to break even | loss, probability of loss |
|---|---|---|---|
| southwest | $60000, 35% | 40% | $10000, 25% |
| california | $112000, 20% | 40% | $40000, 40% |
southeast
southwest
california
all contracts include a probability for loss.
Step1: Calculate expected profit for Southeast
The formula for expected value $E(X)$ is $E(X)=\sum_{i}x_ip_i$. For Southeast, $E_1 = 45000\times0.5+0\times0.3+( - 36000)\times0.2$.
$E_1=45000\times0.5 - 36000\times0.2=22500 - 7200 = 15300$.
Step2: Calculate expected profit for Southwest
For Southwest, $E_2=60000\times0.35 + 0\times0.4+( - 10000)\times0.25$.
$E_2=60000\times0.35-10000\times0.25 = 21000 - 2500=18500$.
Step3: Calculate expected profit for California
For California, $E_3 = 112000\times0.2+0\times0.4+( - 40000)\times0.4$.
$E_3=112000\times0.2-40000\times0.4=22400 - 16000 = 6400$.
Step4: Compare expected values
Since $18500>15300>6400$, Southwest has the highest expected profit.
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Southwest