Chapter4Q02answer1[1]

Chapter4Q02answer1[1] - = p (3 units sold) + p (4 units...

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Chapter 4 Question 2 Number of units sold 0 1 2 3 4 5 Probability 0.05 0.15 0.20 0.35 0.15 0.10 (a) p (4 or 5 units will be sold) = p (4 units sold) + p (5 units sold) = 0.15 + 0.10 = 0.25 (b) p (at least 3 units will be sold)
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Unformatted text preview: = p (3 units sold) + p (4 units sold) + p (5 units sold) = 0.35 + 0.15 + 0.10 = 0.60 (c) p (at least 1 unit will be sold) = 1 – p (0 units sold) = 1 – 0.05 = 0.95...
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