Probability

There are 36 combinations of results after throwing two dices, from 11, 12......66
a. There are 5 possibilities to have the sum of two scores is 8: 26, 35, 44, 53, 66,
and so the probability = 5/26
b. There are 8 possibilities to have the difference of two scores is 2: 13, 24, 31, 35, 42, 46, 53, 64
and so the probability = 8/36 = 2/9
c. There are 15 possibilities to have the product of two scores is a mutliple of 4: 14 22, 24, 26, 34, 41,42,43,44,45,46,54, 62, 64, 66
and so the probability = 15/36 = 5/12
d. There are 2 possibilities to have sum of the two scores is 8 and the difference of the two scores is 2: 35, 53
and so the probability = 2/36 = 1/18
e. There are 4 possibilities to have the difference of two scores is 2 and the product of the two scores is a multiple of 4: 24, 42, 46, 64
and so the probability = 4/36 = 1/9

你列出黎慢慢數都得嘛

a)

６　ｘ
５　　ｘ
４　　　ｘ
３　　　　ｘ
２　　　　　ｘ
１
　１２３４５６

p = 5/36

b)

６　　　ｘ
５　　ｘ
４　ｘ　　　ｘ
３ｘ　　　ｘ
２　　　ｘ
１　　ｘ
　１２３４５６

p = 8/36 = 2/9

c)

６
５
４ｘ
３
２　ｘ
１　　　ｘ
　１２３４５６

p = 3/36 = 1/12

d)
睇返(a)同(b)個圖,睇下邊點重叠

e)
睇返(b)同(c)個圖,睇下邊點重叠