Help please! When the outlier(s) are removed, how does the mean change?

dot plot with 1 dot over 50, 2 dots over 72, 1 dot over 74, 1 dot over 76, 1 dot over 78, 3 dots over 79, 1 dot over 80, 1 dot over 81, 3 dots over 82, and 1 dot over 83

The mean decreases by 1.9.
The mean increases by 2.4.
The mean increases by 1.9.
There are no outliers.

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.

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step-by-step explanation: