WILL GIVE BRAINLIEST 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.

mean=50×1+72×2+74×1+76×1+ 78×1+79×3+80×1+81×1+82×3+83×11+2+1+1+1+3+1+1+3+1

=50+144+74+76+78+237+80+81+246+83

15

=1149

15

=383/5

=76.6

when outliers are removed.

outlier=50

new mean

=72×2+74×1+76×1+78×1+79×3+80×1+81×1+82×3+83×114

\[=\frac{1099}{14}

\[=\frac{157}{2}

=78.5

mean increases by 1.9

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1