Answered

Discover new perspectives and gain insights with IDNLearn.com. Discover detailed and accurate answers to your questions from our knowledgeable and dedicated community members.

27.
In a certain statistics class. he
average grade is 83% with a standard deviation of 4.2%. What
the z-score corresponding to
grade of 81.8%?
-5.04
B.O-1.2
c.O-0.29
D.® 1.2

Sagot :

Raphealnwobiidn

The corresponding z score for a grade of 81.8% for a class with average grade of 83% and standard deviation of 4.2% is -0.29.

What is a z score?

The z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:

z = (raw score - mean) / standard deviation

Given that mean is 83%, standard deviation = 4.2%, for x = 81.8:

z = (81.8 - 83)/4.2 = -0.29

The corresponding z score for a grade of 81.8% for a class with average grade of 83% and standard deviation of 4.2% is -0.29.

Find out more on z score at: https://brainly.com/question/25638875

Thank you for participating in our discussion. We value every contribution. Keep sharing knowledge and helping others find the answers they need. Let's create a dynamic and informative learning environment together. Thank you for trusting IDNLearn.com with your questions. Visit us again for clear, concise, and accurate answers.