Find the area under the standard normal distribution curve between z=0 amd z=1.38

And using the normal standard distribution table or excel we got:

The excel code would be:

"=NORM.DIST(1.38,0,1,TRUE) -=NORM.DIST(0,0,1,TRUE)"

Step-by-step explanation:

For this case we know that our random variable of interest is Z and the distribution is given by:

This distribution is an special case of the normal distribution.

And we want to find this probability:

And we can find this probability with this difference and using the concept of cumulative distribution function for a continuous distribution:

And using the normal standard distribution table or excel we got:

The excel code would be:

"=NORM.DIST(1.38,0,1,TRUE) -=NORM.DIST(0,0,1,TRUE)"

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step-by-step explanation: