Joey Kuang

Budget: $15


In a standard normal curve, the area under the density curve that lies between 30 and 40 is 0.832. What percentage of all possible observations of the variable are either less than 30 or greater than 40?


Tutor Farzad Farzanegan

Anything less than 30 or greater than 40 is in between 30 and 40 so the probabili...

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