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.
However, as with the traditional. deductible IRA, there are income limitations for contributions to a Roth IRA. Unlike a deductible IRA, there is no tax deduction allowed for contributions. to a Roth IRA. Instead, income accumulates tax-free in the account, and. qualified distributions are not taxed. For non-qualified distributions, the. earnings are taxed and may be subject to an additional early withdrawal. penalty.