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Z is a normally distributed random variable. the distribution of z has a mean equal to 0 and a standard deviation equal to 1. what is the probability that z will be less than 1.3 or p(z <1.3) ?

Answer :

sqdancefan
The probability is found from a suitable table or probability calculator.
p(z < 1.3) ≈ 0.9031995154
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