There are 5 students who together donated income counted includes 360 baht variance equal to 660 students has increased 1 people donated money 60 baht, the variance is increased or decreased to match.
Students have five people to donate money. The income of 360 baht and variance 1 additional 660 students have been donated to the 60 baht volatility will increase or decrease at any.
A student 5 people together to donate money, count money include 360 baht variance of 660 if students add another 1 people to donate money 60 baht. Variance will increase or decrease with any.