pls help meeee 5,6,7

0.5 points QUESTIONS z is a standard normal random variable. The P(-2.20 5 25220) equals O a 0.0278 Ob. 0.9645 c. 0.0335 Od 0.9722 0.5 points Save Anwar QUESTION 6 is a standard normal random variable. The P(1.20 SS 2.10) quals a. 0.9028 b.0.7618 OC 0.0972 Od 0.2382 QUESTION 7 0.5 points Saver is a standard normal random variable. The P-1.9652 51.4) equals 20.8942 5.0.035N 09442 Od: 0.1058 0.5 points