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In this problem, it is said that a stockbroker is considering investments in four stocks.
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Now, the performance of the stocks are unrelated.
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Each stock is estimated to have an 80 % chance of increasing in value over the next year.
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And the chance that a stock's price will remain exactly the same is negligible.
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We assume that it is zero.
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Now, we consider the results of all four stocks after one year.
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We need to determine how many outcomes are in the sample space.
00:26
So there are four stocks.
00:32
Now we want to consider how many outcomes there are in the sample space.
00:37
So first of all, consider how many outcomes there are for the first stock.
00:41
Now, it is said that there is an 80 % chance of increasing in value.
00:44
So one outcome is increasing in value over the next year.
00:48
So the other outcome will be decreasing in value over the next year...