Question
The table shows the performance of a selection of 100 stocks after one year. (Take S to be the set of all stocks represented in
The table shows the performance of a selection of 100 stocks after one year. (Take S to be the set of all stocks represented in the table. If a stock stayed within 20% of its original value, it is classified as "unchanged".)
| Companies | Total | |||
|---|---|---|---|---|
| Pharmaceutical P | Electronic E | Internet I | ||
| Increased V | 19 | 15 | 20 | 54 |
| Unchanged N | 6 | 2 | 16 | 24 |
| Decreased D | 3 | 20 | 12 | 35 |
| Total | 28 | 37 | 48 | 113 |
Use symbols to describe the event that an Internet stock did not increase.I V'I' V I VI VI V' How many elements are in this event?
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Linear Algebra and Its Applications
Authors: David C. Lay
4th edition
321791541, 978-0321388834, 978-0321791542
