The Z-Score

Concept: Determining and Applying a Z-Score

16m

Concept: Calculating and Applying a Z-Score: Intro

1m

Problem: Assuming a data set is normally distributed with a mean of 100 and a standard deviation of 20, what is the z-score that represents a value of 120?

3m

Problem: Referring to the data set in Practice 1, what is the z-score that represents a value of 110?

3m

Problem: Referring to the data set in Practice 1, what is the z-score that represents a value of 119?

3m

Problem: Assuming a data set is normally distributed with a mean of 100 and a standard deviation of 15, what is the z-score that represents a value of 119?

4m

Problem: Referring to the data set in Practice 4, how and why is this z-score different from the z-score from Practice 3?

7m

Problem: Referring to the data set in Practice 4, what is the probability of finding values between 115 and 130?

7m

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