Changes

But the patterns aren't very easy to understand like this. The cumulative distribution function uses the same λ and is often a more useful way to understand the data.  

But the patterns aren't very easy to understand like this. The cumulative distribution function uses the same λ and is often a more useful way to understand the data.  

<math>F\left(x,\lambda\right)=1- e^{-\lambda x}</math>

<math>F\left(x,\lambda\right)=1- e^{-\lambda x}</math>

Plotted, it looks like this:

Plotted, it looks like this: