Answer:
2.5 %
Step-by-step explanation:
The simple interest formula is
I = Prt
Data:
I = $75
P = $600
t = 5 yr
Calculation:
75 = 600 × r × 5
75 = 3000 r
Divide each side by 3000
r = 75/3000 = 0.025 = 2.5 % APR
The annual percentage rate is 2.5 %.
The answer for standard deviation would be:
4.382
If the gaming system was $250 and was discounted by 25%. 25% of 250 would be 62.5. The price dropped to $62.50 but since a customer had opened it, it dropped by other 10% making it only $6.25.
Nice price