Chapter 6 Review: What's Normal?

Front

What is the passing score for a test?

Back

50% or more.

Front

What is the mean score of the sampled students?

Back

42%.

Front

What is the standard deviation of the sampled students' scores?

Back

8%.

Front

What percentage of students pass the test if the scores are normally distributed with a mean of 42% and a standard deviation of 8%?

Back

16%.

Front

What does it mean to standardize scores?

Back

To convert scores to a z-score.

Front

What does a positive z-score indicate?

Back

The score is above the mean.

Front

What does a negative z-score indicate?

Back

The score is below the mean.

Front

What is the mean GPA of students in a course at UCDavis?

Back

3.2.

Front

What is the standard deviation of the GPA in the course at UCDavis?

Back

0.3.

Front

What percentage of students have a GPA between 2.9 and 3.8 if the mean is 3.2 and the standard deviation is 0.3?

Back

81.5%.