09-04-2006, 11:07 PM
the ti-30xa mentioned above does not do two variable equations (regression). The ti-36x or ti-36x II does slope, y-intercept, two variable and correlation. It is not a programmable calculator and costs only $16 dollars. Unless i am missing something, having not taken the test yet, i would want the regression features on a test calculator. let me know if i am correct.
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