Answer:

o find the standard deviation of a set of numbers, first find the mean (average) of the set of numbers:

10+15+19+35+27+446=25

Second, for each number in the set, subtract the mean and square the result:

(10−25)2+(15−25)2+(19−25)2+(35−25)2+(27−25)2+(44−25)2=826

Then add all of the squares together and find the mean (average) of the squares, like this:

8266=137.67

Finally, take the square root of the second mean:

137.7−−−−√=11.7.