The data show the traveler spend- ing in billions of dollars for a recent year for a sample of the states. Find the range, variance, and standard deviation for the data. 20.1 33.5 21.7 58.4 23.2 110.8 30.9
24.0 74.8 60.0

Solution :

Given data :

20.1     33.5     21.7      58.4     23.2     110.8     30.9

24.0    74.8     60.0

n = 10

Range : Arranging from lowest to highest.

20.1,   21.7,   23.2,    24.0,   30.9,    33.5,    58.4,    60.0,    74.8,   110.8

Range = low highest value - lowest value

           = 110.8 - 20.1

           = 90.7

Mean =

Sample standard deviation :

S = 29.8644

Variance =

               = 891.8823

probably .5

i can on others if necessary.