Math Problem Statement

Question content area top Part 1 A successful basketball player has a height of 6 feet 1111 ​inches, or 211211 cm. Based on statistics from a data​ set, his height converts to the z score of 5.175.17. How many standard deviations is his height above the​ mean?

Solution

The z-score represents how many standard deviations a particular value is above or below the mean in a dataset. In this case, the z-score of 5.17 indicates that the player's height is 5.17 standard deviations above the mean.

To interpret:

  • Z-score = Xμσ\frac{\text{X} - \mu}{\sigma}
    • Where:
      • X is the individual value (the player's height).
      • μ\mu is the mean (average) height of the data set.
      • σ\sigma is the standard deviation of the data set.

Given that the z-score is 5.17, it means the player’s height is 5.17 standard deviations above the mean height in the data set.

Conclusion:

The player's height is 5.17 standard deviations above the mean.


Would you like further details on z-scores or how to calculate them in general?

Here are some related questions you might find useful:

  1. What does a negative z-score indicate about a data point?
  2. How do you calculate the z-score from raw data?
  3. What is the relationship between the mean, standard deviation, and z-score?
  4. How do you interpret a z-score of 0?
  5. How can z-scores be used to compare data from different distributions?

Tip: A z-score of 2 or higher is typically considered unusual in many data sets, indicating that the value is significantly different from the mean.

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Math Problem Analysis

Mathematical Concepts

Z-scores
Statistics
Standard Deviations

Formulas

Z-score formula: Z = (X - μ) / σ

Theorems

Z-score interpretation

Suitable Grade Level

Grades 10-12