Betty earned a score of 75 on her latest exam.The professor determined that all of the scores from this exam had a normal distribution with a mean of...
View the step-by-step solution to:

Question

# Betty earned a score of 75 on her latest exam. The professor determined that all of the scores from this exam had

a normal distribution with a mean of 88 and a stand deviation of 5.

What is betty's Z score on the exam? Three decimal answer please explain

here, mean () = 88
standard deviation (0 ) = 5
X = Betty's score on last exam = 75
so, the Z- score be:-
=
X - # y
75 - 88
=
= - 2.6
explanation:-
Betty's score in last exam is 2.6 standard...

### Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

### -

Educational Resources
• ### -

Study Documents

Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

Browse Documents