Answer:
Option C is the right answer
Explanation:
The shark fin soup is one of the favorite foods of people and foreigners and when due to the presence of mercury in shark soup the sale of one of the favorite Thai food decline. There are various reasons for the plummeted sales, such as; social factors, people are willing to use and recommend those products only which are healthy. Similarly, political and legal enforcement led to a devastating decline of the overall demand for shark soup.
First, the value of each share rose by 2. So we have +2.
Then it fell by 5. So we have
2 - 5 = -3
Each share has a net value of negative 3.
Dave owns 15 shares. So,
15 * (-3) = -45.
So, there is a net loss of $45.
Answer:
The second gamble has the higher expected value. EV = 4
Explanation:
In betting, expected value can be defined as (Amount won per bet * probability of winning) – (Amount lost per bet * probability of losing)
For the first gamble:

For the second gamble:

This means that Cal is expected to earn $4 for each $20 waged on the second gamble while he is expected to break even in the first gamble.
Therefore, the second gamble has the higher expected value.