Are the random variables xi and xj , where i < j, independent? recall that two random variables x and y are independent if p[x = k1 ∩y = k2] = p[x = k1]p[y = k2] for all k1 and k2. prove your answer using this definition.

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need