The formula for compound interest is P (1 + r/n)^(nt), where P is the initial principal balance, r is the interest rate, n is the number of times interest is compounded per time period and t is the number of time periods.
The standard deviation shows the dispersion (how close) of the data. Therefore the correct statement is A: <span>A- Raquel’s data are most likely closer to $3.42 than Van’s data are to $3.78.</span>