Finding z-scores

Front

What is the formula for finding z-scores?

Back

Front

What does a z-score represent?

Back

A z-score indicates how many standard deviations a data point is from the mean.

Front

If a z-score is negative, what does it indicate about the data point?

Back

It indicates that the data point is below the mean.

Front

If a z-score is positive, what does it indicate about the data point?

Back

It indicates that the data point is above the mean.

Front

How do you calculate the z-score for a value of 10 if the mean is 8 and the standard deviation is 2?

Back

Front

What is the z-score for a weight of 6lbs if the mean weight of wallabies is 9lbs and the standard deviation is 1.5lbs?

Back

Front

How do you find the z-score for a home priced at $193,000 if the mean is $200,000 and the standard deviation is $10,000?

Back

Front

What is the z-score for a student who scores 31 on the ACT if the mean is 21 and the standard deviation is 5?

Back

Front

What is the z-score for a student who scores 28 on the ACT if the mean is 21 and the standard deviation is 5?

Back

Front

What does a z-score of 0 indicate?

Back

It indicates that the data point is exactly at the mean.