I haven't taken precalc in years and have forgotten how to reverse natural log. If ln(A)=18.288, what is the value of A?

Answer 1

Punch in 18.288 into the calculator and hit the e^x button. It should return 87,574,463.4254

Answer 2

Thanks for refreshing my memory Dr. Bob. I have one more question. How do you determine an outlier from a group of measurements? Is there a specific range that a measurement must be out of to be considered an outlier?

Answer 3

You follow the rules for statistics. Common tests are the t-test, the F test, etc. The t-test may be the most commonly used test.