Answer to Question #6304 in Algebra for Brandy

Question

Determine the number of standard deviations which include all data values listed for the situation. The mean height of a tree in an orchard is 11.8 feet; the standard deviation is 1.43 feet.
12.5 ft, 9.8 ft, 13.5 ft, 11.2 ft, 12.3 ft, 14.2 ft, 11.7 ft, 9.8 ft, 12.6 ft, 10.4 ft

Answer 1

standard deviation for all values ​​
((12.5-11.8)^2+(9.8-11.8)^2+(13.5-11.8)^2+(11.2-11.8)^2+(12.3-11.8)^2+(14.2-11.8)^2+(11.7-11.8)^2+(9.8-11.8)^2+(12.6-11.8)^2+(10.4-11.8)^2)/10=2.036