The table shows the performance of a selection of 112 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 Pharmaceutical Electronic E Internet Total Increased V 11 19 31 Unchanged N 39 11 50 Decreased D 11 1 19 31 Total 61 2 49 112 Compute n(P U N'). What does this number represent? O n(PU N) is the number of stocks that were either not pharmaceutical stocks, or were not unchanged after a year (or both). O n(PU N) is the number of stocks that were either pharmaceutical stocks, or were not unchanged after a year (or both). O n(PU N) is the number of stocks that were pharmaceutical stocks and were not unchanged after a year. O n(PU N) is the number of stocks that were either pharmaceutical stocks, or were unchanged after a year (or both). O n(PU N) is the number of stocks that were not pharmaceutical stocks and were unchanged after a year.
The table shows the performance of a selection of 112 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 Pharmaceutical Electronic E Internet Total Increased V 11 19 31 Unchanged N 39 11 50 Decreased D 11 1 19 31 Total 61 2 49 112 Compute n(P U N'). What does this number represent? O n(PU N) is the number of stocks that were either not pharmaceutical stocks, or were not unchanged after a year (or both). O n(PU N) is the number of stocks that were either pharmaceutical stocks, or were not unchanged after a year (or both). O n(PU N) is the number of stocks that were pharmaceutical stocks and were not unchanged after a year. O n(PU N) is the number of stocks that were either pharmaceutical stocks, or were unchanged after a year (or both). O n(PU N) is the number of stocks that were not pharmaceutical stocks and were unchanged after a year.
Chapter9: Sequences, Probability And Counting Theory
Section9.5: Counting Principles
Problem 42SE: In horse racing, a “trifecta” occurs when a bettor wins by selecting the first three finishers in...
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Transcribed Image Text:The table shows the performance of a selection of 112 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
Pharmaceutical
Electronic
Internet
P
E
I
Total
Increased
11
1
19
31
V
Unchanged
39
11
50
N
Decreased
11
1
19
31
D
Total
61
2
49
112
Compute n(P U N').
What does this number represent?
O n(PU N') is the number of stocks that were either not pharmaceutical stocks, or were not unchanged after a year (or both).
O n(P U N') is the number of stocks that were either pharmaceutical stocks, or were not unchanged after a year (or both).
O n(P U N') is the number of stocks that were pharmaceutical stocks and were not unchanged after a year.
O n(PU N') is the number of stocks that were either pharmaceutical stocks, or were unchanged after a year (or both).
O n(P U N') is the number of stocks that were not pharmaceutical stocks and were unchanged after a year.
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