Final answer:
The annual force of interest credited to a savings account is defined by the interest rate that the account pays. This interest rate is the percentage of the account balance that is added to the account each year.
Step-by-step explanation:
The annual force of interest credited to a savings account is defined by the interest rate that the account pays. This interest rate is the percentage of the account balance that is added to the account each year. It represents the growth or increase in value of the savings account over time.
For example, if a savings account has an interest rate of 3%, it means that for every $100 in the account, an additional $3 will be credited to the account at the end of the year. The annual force of interest is directly influenced by the interest rate.
It's important to note that the interest rate on savings accounts can vary depending on the bank or financial institution, the type of account, and other factors.