Question: The time it takes certain pastries to cool down is normally distributed with a mean of 5.3 hours and a standard deviation of 2.1 hours.

The time it takes certain pastries to cool down is normally distributed with a mean of 5.3 hours and a standard deviation of 2.1 hours.

  1. What is the median time it takes to cool down for these pastries?
  2. Explain in your own words why we are using median instead of mean or mode?
  3. What is the z-score of a pastry that takes 10 hours to cool?

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