1. ## Exponetial Function Problem

Hi, Thanks For looking!
$(1/15)e^-(1/15)t$
Think i wrote that write!
but i want to know how to work out t and what it is?
thanks

Would you state the entire problem?

You seem to want to solve for $t$, but there is no equation.

Also, is that supposed to be: . $\frac{1}{15}e^{-\frac{1}{15}t}$

3. Yeah it is suppose to be like that!

i have to work out the t for the poisson formula in statistic! when i have all the other things in the formula

4. I thought u could just assume it is =0

so it goes to 15=E ^ -(1/15)t

or something?!