Outliers Standard Deviation

What is the standard deviation (with outlier), use desmos, list one decimal place

An Outlier Is…

• A value that is in the middle of a data set.

• A value very close to the mean of the data set.

• A value that is an abnormal distance from other points in the data set.

• A number that makes more sense to use in the context of a data set.

Which number is the outlier?

What is the outlier?

If an outlier is added to a data set, how does this affect standard deviation?

• increase

• decrease

• stay the same

• both increase and decrease

If a number is added to a set that is far away from the mean, how does this affect standard deviation?

• increase

• decrease

• stay the same

• both increase and decrease

Which data point did the statistician exclude?

• (2.3, 11.0)

• (4.2, 16.5)

• (6.4, 23.1)

• (8.2, 24.3)

What is the Mean WITH THE OUTLIER? (List one decimal!)

What is the Mean WITHOUT the OUTLIER?

What is the RANGE WITHOUT the OUTLIER?