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What two things need to be present to determine the z score?

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Final answer:

The mean (µ) and the standard deviation (σ) need to be present to determine the z-score.

Step-by-step explanation:

The two things that need to be present to determine the z-score are the mean (µ) and the standard deviation (σ). The z-score is a measure of how many standard deviations an individual data point is from the mean of a distribution. It is calculated using the formula:

z = (x - µ) / σ

where x is the data point, µ is the mean, and σ is the standard deviation.

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