Question

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

Answer 1

Nope.

Answer 2

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

Answer 3

No.

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

Study this site.

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

Answer 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