What is the standard deviation of the data set given below? 4, 7, 8, 9, 12
a.
b.
c.8.5
d.6.8
e.2.5
f.

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.