approximately what percent of the values in a distribution lie between the 25th percentile and the 75th percentile?

Stephen thublin invests $1,000,000 in a 45-day certificate of deposit with 6.55% interest. what is the total interest income from the investment?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%