Final answer:
The interest rate per period (i) for the deposit with an annual interest rate of 13%, compounded quarterly, is 3.25, when expressed as a decimal and rounded to two decimal places.
Step-by-step explanation:
The question involves calculating the interest rate per period for a 12-year deposit with an annual interest rate of 13%, compounded quarterly. Since interest is compounded quarterly, we need to divide the annual interest rate by the number of compounding periods per year. In this case, there are 4 quarters in a year.
To calculate the interest rate per period (i), we use the following formula:
i = annual interest rate / number of periods per year
Therefore,
i = 0.13 / 4 = 0.0325
Converting this to a percentage and rounding to two decimal places:
i = 3.25%
However, as requested, we do not include the percentage sign in the answer.