1 Suppose, for example, that we conducted a survey to estimate the average weight of high school students. 2  Since we are only working with one variable (weight), we would be working with univariate data. 3  Bivariate data.
Contributing to a traditional IRA can create a current tax deduction, plus it provides for tax-deferred growth. While long-term savings in a Roth IRA may produce better after-tax returns, a traditional IRA may be an excellent alternative if you qualify for the tax deduction. Use this traditional IRA calculator to view the amount that could be saved using a traditional IRA. Javascript is required for this calculator. If you are using Internet Explorer, you may need to select to 'Allow Blocked Content' to view this calculator.
Traditional IRAs give a tax deduction when you contribute but are usually taxable when you withdraw. Roth IRAs, on the other hand, give no up-front tax deduction but you typically owe no taxes when you withdraw. You can think of a traditional IRA as tax deferred and a Roth IRA as tax free.