posted by Jane Segurra on .
What is the probability of randomly selecting a z-score less than z = 0.80 from a normal distribution.
This can be done without even looking at any tables, assuming the correct answer is in there
First of all, rule out the two negative results, prob's can't be negative
a z score of 0 would be .5
any negative z-score would be < .5
So there is only one choice, namely C) .2119