PSYCH 200 CHAPTER 6 UNIT 2 EXAM QUESTIONS AND ANSWERS
A person with a z score of 0 would have a raw score equal to: - CORRECT ANSWER✅✅the mean of the
distribution of raw scores.
The z distribution _____ has a standard deviation of _____. - CORRECT ANSWER✅✅always; 1
Any raw score can be converted into a z score, as long as you know the _____ and _____ of the
distribution. - CORRECT ANSWER✅✅mean; standard deviation
If samples have at least _____ scores, the distribution of means will most likely approximate a normal
curve. - CORRECT ANSWER✅✅30
Sample means based on at least _____ scores tend to approximate a normal distribution, even when the
underlying population is skewed. - CORRECT ANSWER✅✅30
In a normal standard curve, which percentile corresponds to a z score of -1.0? - CORRECT
ANSWER✅✅NOT 34
NOT 64
A _____ is a distribution of z scores. - CORRECT ANSWER✅✅z distribution
On the first statistics exam, the class average was 70 with a standard deviation of 6. Adam scored 82.
What is his z score? - CORRECT ANSWER✅✅2.0
A _____ represents the number of standard deviations a particular score is from the mean average. -
CORRECT ANSWER✅✅z score
A z score is a measure of: - CORRECT ANSWER✅✅how far away from the mean a score is in terms of
standard deviations.
A person with a z score of 0 would have a raw score equal to: - CORRECT ANSWER✅✅the mean of the
distribution of raw scores.
The z distribution _____ has a standard deviation of _____. - CORRECT ANSWER✅✅always; 1
Any raw score can be converted into a z score, as long as you know the _____ and _____ of the
distribution. - CORRECT ANSWER✅✅mean; standard deviation
If samples have at least _____ scores, the distribution of means will most likely approximate a normal
curve. - CORRECT ANSWER✅✅30
Sample means based on at least _____ scores tend to approximate a normal distribution, even when the
underlying population is skewed. - CORRECT ANSWER✅✅30
In a normal standard curve, which percentile corresponds to a z score of -1.0? - CORRECT
ANSWER✅✅NOT 34
NOT 64
A _____ is a distribution of z scores. - CORRECT ANSWER✅✅z distribution
On the first statistics exam, the class average was 70 with a standard deviation of 6. Adam scored 82.
What is his z score? - CORRECT ANSWER✅✅2.0
A _____ represents the number of standard deviations a particular score is from the mean average. -
CORRECT ANSWER✅✅z score
A z score is a measure of: - CORRECT ANSWER✅✅how far away from the mean a score is in terms of
standard deviations.
