The amount you will repay can be solved by:
Amount to be repaid = ( $ 1, 431 borrowed) ( $ 0.31 per day
/ $ 500 borrowed) 151 days
Amount to be repaid = $ 133.97
The annual interest rate is:
1431 + 133.97 = 1431( 1 + i)^ 151(1/360)
Solve for i
i = 0.2378 or 23.78 % per year
Answer:
man that takes to much time but this is what I got 4,057.6
Here is what I got for the first one. MAD=
1/(N)*(|x1-xm|+|x2-xm|+..+|xN-xm|)
=1/5(|85-83|+|83-83|+|87-83|+|90-83|+|70-83|)
=1/5(2+0+4+7+13))
=5.2
And for the second one I got, MAD=
1/(N)*(|x1-xm|+|x2-xm|+..+|xN-xm|)
=1/5(|75-76|+|74-76|+|68-76|+|83-76|+|80-76|)
=1/5(1+2+8+7+4))
=4.4
