1) given that z is a standard normal variable, p( -2.55<= z <= .95 ) is A) 0.8235 B) 0.8289 C) 0 D) 0.0054 E) none of the above 2) given that z is a standard normal variable, which of the following is true regarding p(z>= -2.45)? A) it is greater than p(z<=2.45) B) it is equal to p(z<=2.45) C) it is smaller than p(z<=2.45) D) it is equal to p(z<=0.45) E) none of the above