Answer: The mean increases by 3
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The original data set is
{50, 76, 78, 79, 79, 80, 81, 82, 82, 83}
The outlier is 50 because it is not near the group of values from 76 to 83 which is where the main cluster is.
The original mean is M = (50+76+78+79+79+80+81+82+82+83)/10 = 77
If we take out the outlier 50, the new mean is N = (76+78+79+79+80+81+82+82+83)/9 = 80
So in summary so far
old mean = M = 77
new mean = N = 80
The difference in values is N-M = 80-77 = 3
So that's why the mean increases by 3
D, because all of the others when multiplied are greater or less than 34. If you multiply the sides of D you get 34 exactly.
What lesson are we talking about I will be happy to help.
<span>A helicopter is hovering 100 meters above the ocean. Directly below it, a submarine is at a depth of 200 meters.The altimeter on the helicopter reads 100 meters,which means it is 100 meters above sea level.The altimeter on the submarine reads 200 meters,which means it is 200 meters below sea level</span>
