Why does the formula for calculating the sample variance, s squared equals startfraction summation from nothing to nothing left parenthesis x minus x overbar right parenthesis squared over n minus 1 endfraction s2= ∑x−x2 n−1 , involve squaring the difference between each value and the mean?

i am thinking c. sorry if im wrong .

step-by-step explanation:

f(x)=4

step-by-step explanation:

$655.61 which is option c

step-by-step explanation:

price of house =   $146,000

initial rate = 3.5%

mortgaged paid in this = 3.5 % of $146,000

                                        =

                                        =$5110

the total years would be = 7

total mortgaged paid = 7 * $5110

                                      =$35770

remaining money = $146000-35770

                                =$110230

new mortgaged payment = 5 % of 110230

                                            =  

                                            =$655.61