Posted: Wed Oct 06, 2010 5:32 pm Post subject: MSN isn't working so I'll just ask for help here.
Z is standard normal random variable (mean = 0 and standard deviation = 1), so I have to find the value of
a) P(Z greater than or equal to 1.25)
b) P(-1.8 less than or equal to Z less than or equal to -1.2)
c) Value of z so that P(0 less thanor equal to Z less to z) = 0.478
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