random variables

For the standard normal random variable Z, compute the following probabilities. For the following problems, use four decimal places.

16.
P (0 ¡Ü Z ¡Ü .9)

17.
P (-1.3 ¡Ü Z ¡Ü 0)

18.
P(Z > 2.5)

19.
P(Z ¡Ý -.75)

20.
P(Z < .05)

21.
P (Z ¡Ü -.72)

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asked by Donna

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