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)"

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

no this is a nonlinear negative