What requirements are necessary for a normal probability distribution to be a standard normal probability​ distribution?

represent the mean and,

represent the deviation

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X a random variable distributed normally. For this case we just need to conditions in order to satisfy a standard normal distribution

represent the mean and,

represent the deviation

On this case we say that is a normal standard distribution.

answer: idk

step-by-step explanation:

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation: