An archive the questions from Mark's Summer 2018 Stat 185.

Standard deviation

mdavis9

Can someone help me figure out what the standard deviation is? Thank you
102,56,89,78?

jthomps6

The standard deviation to your question is 19.50.

barx = sqrt(((102-83.5)^2+(56-83.5)^2+(89-83.5)^2+(78-83.5)^2)/(4-1))