Create a model to represent the following percents
a) 50%
b) 5%
c) 5/10%

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis: