Alice walks into a post office with 2 clerks. both clerks are in the midst of serving

customers, but alice is next in line. the clerk on the left takes an expo(λ1) time to

serve a customer, and the clerk on the right takes an expo(λ2) time to serve a customer. let t be the amount of time alice has to wait until it is her turn.

(a) write down expressions for the mean and variance of t, in terms of double integrals

(which you do not need to evaluate).

(b) find the distribution, mean, and variance of t, without using calculus.

the answer will be b x² +x-1

step-by-step explanation:

irrational, cannot

the correct answer is a) they believe they have a "just cause."

islamic terrorists justify their violent actions because they believe they have a "just cause."

every act of terrorism of islamic sects is done “in the name of allah”. that justifies their actions. islam people who commit those terrorist attacks are not afraid to die. that is why the attacks have horrible consequences. they know they are going to die and they are proud to do it because it is in the name of allah, so it is justified and is for a “good cause.”

since the very beginning of the conflict with israel, islam is fighting a “sacred war”, respecting the words stated in the qur’an. they fight against the domination of the western countries and to defend their occupied territories.