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MY NOTES The table shows the performance of a selection of 117 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".) ASK YOUR TEACH Companies Pharmaceutical Electronic Internet E Total Increased 14 V 19 36 Unchanged 31 14 45 Decreased D 14 3 19 36 Total 59 6. 52 117 n(D n I) Calculate n(D) What does the answer represent? n(D n I) is the fraction of unchanged stocks that were Internet stocks. n(D) n(D n I) is the fraction of increasing stocks that were Electronic stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Internet stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Electronic stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Pharmaceutical stocks. n(D)

MY NOTES The table shows the performance of a selection of 117 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".) ASK YOUR TEACH Companies Pharmaceutical Electronic Internet E Total Increased 14 V 19 36 Unchanged 31 14 45 Decreased D 14 3 19 36 Total 59 6. 52 117 n(D n I) Calculate n(D) What does the answer represent? n(D n I) is the fraction of unchanged stocks that were Internet stocks. n(D) n(D n I) is the fraction of increasing stocks that were Electronic stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Internet stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Electronic stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Pharmaceutical stocks. n(D)

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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MY NOTES ASK YOUR TEACH The table shows the performance of a selection of 117 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 I Total Increased 14 3 19 36 Unchanged 31 14 45 Decreased 14 19 36 Total 59 52 117 n(D n I) Calculate n(D) What does the answer represent? n(D n I) is the fraction of unchanged stocks that were Internet stocks. n(D) n(D n I) is the fraction of increasing stocks that were Electronic stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Internet stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Electronic stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Pharmaceutical stocks. n(D) 3.
Transcribed Image Text:MY NOTES ASK YOUR TEACH The table shows the performance of a selection of 117 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 I Total Increased 14 3 19 36 Unchanged 31 14 45 Decreased 14 19 36 Total 59 52 117 n(D n I) Calculate n(D) What does the answer represent? n(D n I) is the fraction of unchanged stocks that were Internet stocks. n(D) n(D n I) is the fraction of increasing stocks that were Electronic stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Internet stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Electronic stocks. n(D) n(D n I) is the fraction of decreasing stocks that were Pharmaceutical stocks. n(D) 3.
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