find the following probability for standard normal variable a. P(z>1.67) b.p(z<-1.28) c.p(0.28
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find the following
a. P(z>1.67)
b.p(z<-1.28)
c.p(0.28<or equal to < or equalzless than equal 2.29)
d. p(-1.75< or equal toz<-0.07)
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