An unbiased dice is thrown once. Write down the probability distribution of the score X and show that Var(X) = 35/12 = I've done this!!!
The same dice is thrown 70 times.
a) Find the probability that the mean score is less than 3.3.
b) Find the probability that the total score exceeds 260.
is this somewhat related to the first part explain!!!
B) PART P(x>3.714)= .845 how mean is 3.5 and sd is 1.707
meam N(mean,sd/sqrt(n) pls let me knw wat u think
...or just paranoid?