统计学原理计&cced

统计学原理计&cced

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Unformatted text preview: 1 40 : 68 89 88 84 86 87 75 73 72 68 75 82 97 58 81 54 79 76 95 76 71 60 90 65 76 72 76 85 89 92 64 57 83 81 78 77 72 61 70 81 60 6070 ,7080 8090 90100 1 2 3 4 () 60 3 7.5 6070 6 15 7080 15 37.5 8090 12 30 90100 4 10 40 100 2 3 4 7.5% 10% 70-90 67.5% ABC 2 1 14 ) ( 77 40 95 4 85 12 75 15 65 6 55 3 = + + + + = = f xf x 36 9.6 P102 . : 5 . 29 100 2950 13 34 38 15 13 45 34 35 38 25 15 15 = = + + + + + + = f xf x ( 29 986 . 8 100 8075 2 = =- f f x x 267 ....
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This note was uploaded on 02/28/2012 for the course ECO 211 taught by Professor Arafat during the Summer '08 term at Anne Arundel CC.

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统计学原理计&cced

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