High School

A particular group of men has heights with a mean of 176 cm and a standard deviation of 7 cm. Earl has a height of 196 cm. Convert Earl's height to a z-score.

The z-score is _______.

Answer :

Final answer:

Earl's height, when converted to a z-score, equals 2.86. This means that his height is approximately 2.86 standard deviations above the mean height of the group of men.

Explanation:

To calculate Earl's height in terms of z-score, we'd need to know how many standard deviations away Earl's height is from the mean height of the group. The formula used to calculate a z-score is:

Z = (X - μ) / σ

Where:

  • Z is the z-score,
  • X is the value to be standardized (in this case, Earl’s height),
  • μ is the mean of the population (in this case, the average height),
  • σ is the standard deviation of the population.

For Earl:

Z = (196 - 176) / 7 = 20/7 = 2.86

Hence, Earl's height is 2.86 standard deviations above the mean height.

Learn more about Z-Score here:

https://brainly.com/question/31613365

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