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1)Let z be the standard normal distribution. Calculate the following (round to the nearest ten-thousandth): P(l.2<z<2.3)...

1)Let z be the standard normal distribution. Calculate the following (round to the nearest ten-thousandth): P(l.2<z<2.3)

2)Let z be the standard normal distribution. Calculate the following (round to the nearest ten-thousandth):

P(z>0.23)

3) Let x be the normal distribution with μ=12 and σ=0.8. Calculate the following (round to the nearest ten-thousandth):

P(10<x<13)
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