STA 3032 Lecture 3: 1

Expected Snowfall The amount of snowfall in feet in a remote region of Alaska in the month of January is a continous random variable with probability density function

Find the amount of snowfall one can expect in any given month of January in Alaska.

5. Consider the matrix 1 1 2 A= 2 b 3 11 a/ . Which of the following is true? (a) rank(A)=1 if b = 2 and for every value of a (b) rank(A)=2 if b=2 and for every value of a #2 (c) rank(A)=1 if b=1 and a = 2 (d) rank(A)=1 if b = 2 and a = 2 (e) None of the above

(3 1 7. The rank of 1 2 11 1 3 2 1 1 2 -1 0 is 1 0 -1 " 2 ). (A) 1 (B) 2 (C) 3 (1) 4)