Recent content by anjunabeats

Yeah i think i understand poisson distribution more clearly now, just finished the course today probably planning to learn more chunkier stats in the future.

thanks for pointing out the obvious.

To learn statistics, I am already doing well enough to pass the exam. I am probably going to learn much more difficult concepts in the future so its best if i get the fundamentals right.

Im currently doing an introductory stats course and have learnt: - poisson distribution - binomial distribution - normal distribution - t-student - and chi-square I think I know what most of them look like but am having a bit of a hard time distinguishing what distribution to use when...

Well i have my stats exam tommorow thanks for the help compuchip, really appreciated ciao.

found out we can find the sd using root (sd1/number of stocks + sd2/number of stocks)

I was searching on the internet and just found that Var(X + Y) = Var(X) + Var(Y) + 2COV(X,Y) therefore the above is most likely wrong. How would i find the covariance of stocks A and B? Is there a quick way?

So for E(X + Y) = E(X) + E(Y) E (X + Y) = 4/7 (0.03) + 3/7 (0.02) = 9/ 350 = 0.025714 and for Var(X + Y) = Var(X) + Var(Y) Var (X + Y) = 0.02^2 + 0.01^2 = 1/2000 Standard deviation = 0.0223606 We are finding P (X > 0) then for z = X - Mu/ sd = 0 - 0.025714 / 0.0223606...

Yeah I am not sure how to find the mean and standard deviation.

Really stuck on this question. Stock A has an expected return mean of 0.03 and standard deviation of 0.02 Stock B has an expected return mean of 0.02 and standard deviation of 0.01 Investor invests in 20 lots of stock A and 15 lots of Stock B (as in 4/7 in A and 3/7 in B) What is the...