0 otherwise
(a) Find the cdf of X
(b) Does the expectation exist? Find it if it does exist.
(c) Does the variance exist? Why?
2.Deer ticks can be carriers of either Lyme disease or human granulocytic
ehrlichiosis(HGE). Based on a recent study, suppose that 16% of all ticks
in a certain location carry Lyme disease,10% carry HGE,and 10% of the
ticks that carry at least one of these diseases in fact carry both of them.
If a randomly selected tick is found to have carrier HGE,what is the
probability that the selected tick is also a carrier of Lyme disease?
更新1:
1.cdf的定義看不懂 註：機率分佈(probability distribution) 分佈函數(distribution function) 機率質量函數(probability mass function) 累積分佈函數(cumulatived distribution function) 這四個一直搞亂看不懂 2.看不懂英文，他是要我做什麼?
