Textbook ExpertVerified Tutor
6 Nov 2021
Given information
Given that Ricardo and Anita attend different colleges. Ricardo’s GPA is the same as the average GPA at his school. Anita’s GPA is 0.70 standard deviations above her school average. We have to explain the following statement Ricardo is not passing because his z-score is zero is false.
Step-by-step explanation
Step 1.
According to the given information, Ricardo’s GPA is the same as the average GPA at his school. Anita’s GPA is 0.70 standard deviations above her school average.
The standard score or z-score can be measured by using the formula:
where 
is the actual score and 
are the average score and standard deviation of the particular school.
So Ricardo's actual score is 
and the z-score is 0.
Anita's actual score is 
and the z-score is 0.7.
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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208
Solutions
Chapter
Section
- Problem 65ai
- Problem 65aii
- Problem 65aiii
- Problem 65aiv
- Problem 65b
- Problem 67a
- Problem 67b
- Problem 67c
- Problem 68
- Problem 69
- Problem 70
- Problem 71
- Problem 72
- Problem 73a
- Problem 73b
- Problem 73c
- Problem 73d
- Problem 74a
- Problem 74b
- Problem 74c
- Problem 74d
- Problem 75a
- Problem 75b
- Problem 75c
- Problem 76a
- Problem 76b
- Problem 76c
- Problem 77a
- Problem 77b
- Problem 77c
- Problem 77d
- Problem 77e
- Problem 78a
- Problem 78b
- Problem 78c
- Problem 78d
- Problem 78e
- Problem 79a
- Problem 79b
- Problem 79c
- Problem 79d
- Problem 80a
- Problem 80b
- Problem 80c
- Problem 80d
- Problem 80e
- Problem 81a
- Problem 81b
- Problem 81c
- Problem 81d
- Problem 81e
- Problem 81f
- Problem 81g
- Problem 81h
- Problem 81i
- Problem 81j
- Problem 82a
- Problem 82b
- Problem 82c
- Problem 83a
- Problem 83b
- Problem 83c
- Problem 83d
- Problem 83e
- Problem 83f
- Problem 83g
- Problem 83h
- Problem 84
- Problem 85
- Problem 86a
- Problem 86b
- Problem 86c
- Problem 87a
- Problem 87b
- Problem 87c
- Problem 88a
- Problem 88b