According to the IRS the mean tax refund for the year 2009 was $3333 The standard deviation of the population of returns is $551, and the amounts follow the normal distribution a Using Norm. Dist What percent of the returns are more than $2000? b What percent of the returns are more than $5000? Answer Answer C. What percent of the returns are between $3000 and $5000? Answer Create an approximate line graph of this normal distribution with $3333 as the mean You can make a table of values from which to create the graph Mean SD 3333 551