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14111cwir11ws.3

# 14111cwir11ws.3 - 75 ² 12 A basket contains 5 oranges 7...

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9. Let Z be the standard normal variable. Find the following: (a) P ( - 0 . 75 < Z < 0 . 25) (b) P ( Z < 1) (c) P ( Z > 0 . 5) 10. Pivot the given matrix about the element a 22 : 1 - 2 5 9 0 4 - 8 16 0 5 3 9 11. Solve the following matrix equation for a , b , and c : 7 5 6 b 9 - c 4 2 + 9 2 5 7 a 9 2 10 5 9 = 81 96 108 100 84 75 12. A basket contains 5 oranges, 7 bananas, and 8 apples. If 5 pieces of fruit are randomly selected from the basket, how many
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Unformatted text preview: 75 ² 12. A basket contains 5 oranges, 7 bananas, and 8 apples. If 5 pieces of fruit are randomly selected from the basket, how many samples contain exactly two oranges or exactly two apples? 3...
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