F5 Probability

2011-05-10 8:55 pm

Two dice are thrown, what is the probability that
a) the sum is more than 8?
b) the sum is equal to 8?
c) the sum is more than or equal to 8?

回答 (1)

2011-05-10 9:16 pm

✔ 最佳答案

圖片參考：http://3.bp.blogspot.com/-y8snIYO7DUo/SZjeg-QGPxI/AAAAAAAAA28/5V-RdaaD1W4/s1600/dice_9d2.png

(a) P = (4 + 3 + 2 + 1)/36 = 10/36 = 5/18

(b) 5/36

(c) 15/36 = 5/12

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