Question

find the standard deviation for the given data
1. 4,8,9,14,10
a. 3.53
b. 10.40
c. 6.71
d. 3.22

2. 26,33,34,40,27
a. 32
b.26
c. 5.10
d. 4.65

Answer 1

to compute the population standard deviation, compute the mean of all of the data. then sum the squares of the difference of each data point and the mean, divide that by the number of data points, and take the square root.

Answer 2

http://www.mathsisfun.com/data/standard-deviation-formulas.html

Answer 3

1. A
2. C

pretty sure i did my math right?

Answer 4

Yes, your answers are right.