SOLUTION: What is the area in the lower tail associated with a z-score of 2.92? What approximate z-score is associated with the 72nd percentile?

Algebra.Com
Question 1177078: What is the area in the lower tail associated with a z-score of 2.92?
What approximate z-score is associated with the 72nd percentile?



Answer by Theo(13342)   (Show Source): You can put this solution on YOUR website!
a z-score of 2.92 will have .9982497754 of the area under the normal distribution curve to the left of it.

this is what it looks like.



72d percentile will have a z-score of .582841502 associated with it.

this is what it looks like.







RELATED QUESTIONS

Assuming a normal distribution, what is the z-score associated with the 99th... (answered by stanbon,solver91311)
Assuming a normal distribution, what is the z-score associated with the 90th percentile? (answered by CubeyThePenguin)
Determine the z-score associated with the following percentages a. 19% from the mean to... (answered by Boreal)
Assuming a normal distribution, what is the z-score associated with the 90th percentile? (answered by stanbon)
A psychologist studied self-esteem scores and found the data set to be normally... (answered by stanbon)
A psychologist studied self-esteem scores and found the sample data set to be normally... (answered by swincher4391,stanbon)
The average age of a vehicle registered in the United States is 96 months. Assume the... (answered by rothauserc)
The mean amount of sleep needed for adults is 503 minutes per night. If the standard... (answered by Solver92311)
The mean age at first marriage for respondents in a survey is 23.33, with a standard... (answered by Boreal)