Please help with the following multiple choice questions :)

Question 1 If W is a continuous random variable, with pdf fw(w) > O at each real number w. NM YET Then, for any chosen real number w, P( W = w ) equals answered Points out of ' 0 1 .00 None of the other answers r Flag question the value of the cdf of W evaluated at w fle) Question 2 Not yet answered Suppose X1! . . . )X \Question 6 Suppose W ~ N(0,1). Then what distribution does W follow? Not yet answered o t with 2 degrees of freedom Points out of o x with 2 degrees of freedom 1.00 o x with 1 degree of freedom Flag question o t with 1 degree of freedom Question 7 Suppose W1 ~ N( J, of ) and that W2 ~ x" with 4 degrees of freedom. Suppose W1 and W2 are independent. Then which of the following has a t-distribution with 4 degrees of freedom? Not yet answered o (W1 - H)/ [o (W2/ 4) 1/2 ] Points out of o None of the other answers 1.00 O W1/ [ (W2/ 4) ] P Flag question O W1/1 (W2/ 4) 1/2 ] o (W1 - H)/ [ o (W2/ 4) ]