FE Exam Review - FE Exam - Probability and Statistics - Normal Distribution

[@TheLychie]

Fast way is go to 2nd data>normalcdf(lower bound, upperbound, mean, sigma) > normalcdf(90,98,95,2.5). Please correct me if I'm wrong!

[@saltypokai9568]

thanks!!!!

[@Menga213]

Did you do this on the calculator?

[@derekcano9696]

When solving for the z-score wouldn't the sample size (31 days) be included in the calculation?

[@Menga213]

So is this a probability problem or statistics? How can you tell the difference? The new civil fe specs don't have probability anymore? But it does say distribution

[@directhubfeexam]

Hi Menga, this will definitely be in the Civil fe exam. Distributions will consist of normal, binomial and t distributions.

[@chandrasekhar-jf9jf]

Good one👌

[@directhubfeexam]

Thank you!