Question about Casio FX-115ES Scientific Calculator
Posted by Anonymous on
Not knowing what kind of probability calculations you want to perform, I can only show you how to access the distributions that this calculator has to offer.
After you enter your data and do the usual statistics, you press SHIFT STAT and select 7:Distr. You get acces to
4: X to t, the variate.
See the exemples in the Appendix to the user's manual, in particular #059.
Hope it helps.
Posted on Oct 28, 2009
Your calculator knows only the decimal logarithms log or log_10 and the natural logarithms (ln or log in base e).
So you cannot compute directly the logarithms in any bases other than 10 and e.
A workaround consists in using the relation
log in base b of a number a (log_b (a))
log_b(a)= (log_10(a) ) / (log_10 (b))
or the relation
log_2(0.3)=log(0.3)/log(2) where log is log in base 10
As to the multiplicative factor you had at the beginning of your expression, just multiply the value obtained by one on the formulas above (both formulas will give the same result) by 0.3
Posted on Jul 24, 2010
SOURCE: I am trying to do a financial calculation using a casio fx-83es calculator. The calc is to do with average rate of return each year. the calc is 5 square root symbol 1.734= 1.1164? How do I calculate
You should be careful with the symbols you are using. Roots are different. When you say `5 square root symbol 1.734` you are in fact doing the following: 5x square root(1.734) which is 6.5850.
What you need to do is extract the fifth root of 1.734.
The key to use to extract a root of index n (in your case 5) is to press the digit key for the index, then press [2nd][Y^x]. On the calculator near the [y^x] key you can see xRoot. This is the universal root key.
Posted on Jul 17, 2012
Testimonial: "ok many thanks. Thats very helpful"
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