Algebra 1

A survey was taken of students in math classes to find out how many hours per day students spend on social media. The survey results for the first-, second-, and third-period classes are as follows:

First period: 2, 4, 3, 1, 0, 2, 1, 3, 1, 4, 9, 2, 4, 3, 0

Second period: 3, 2, 3, 1, 3, 4, 2, 4, 3, 1, 0, 2, 3, 1, 2

Third period: 4, 5, 3, 4, 2, 3, 4, 1, 8, 2, 3, 1, 0, 2, 1, 3

Which is the best measure of center for first period and why?

Mean, because there are no outliers that affect the center***

Median, because there is 1 outlier that affects the center

Interquartile range, because there is 1 outlier that affects the center

Standard deviation, because there are no outliers that affect the center

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asked by Peter
  1. Nope.

  2. Hmm, then would it be D? Also, I am not guessing I am just unsure

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    posted by Peter
  3. No.

    That's your second try -- and now you're on your own.

    Study this site.

    http://www.mathsisfun.com/definitions/outlier.html

  4. Wait please! I need another website! I still don't necessarily understand. I don't see any outliers. I know that an outlier would affect the median

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    posted by Peter

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