karenying wrote:
我係可能去
group A: mean of P(去) = 80%---------------------SiU_LeAf wrote:
為啥小葉升級做一定去了!!?(大驚
雖然多數會去
wmf
cbb
aabc
owl
Miu
hln
ying x kpy
小童
小葉
group B: mean of P(去) = 50%------------------------
ass
kana
dickyheya
bryan26249
靜雪
AVWolf
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Given that the standard variation of group A and B are 4% and 9% respectively. Assume that the probability is distributed in normal distribution for both group A and B,
a) Find the probability that bakaying will come with kpy. (4 marks)
b) Find the probabiltiy that more than 8 players would farewell for wmfchris. (5 marks)
c) If (Number of presents in group B) > 0.5 (Number of presents in group A) we state the situation as "abnormal". Find the probability that the situation is "abnormal". (5 marks)
d) Find the probability that all taiko players has come. (7 marks)
咁你係咪想咁?