Question 1163976
<font face="Times New Roman" size="+2">


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ P\(25\leq x \leq 30,80,0.25\)\ =\ \sum_{r=25}^{30}\,{{80}\choose{r}}\(0.25\)^r\(0.75\)^{1-r}]


You can do your own arithmetic.


																
John
*[tex \LARGE e^{i\pi}\ +\ 1\ =\ 0]
My calculator said it, I believe it, that settles it
<img src="http://c0rk.blogs.com/gr0undzer0/darwin-fish.jpg">
*[tex \Large \ \
*[tex \LARGE \ \ \ \ \ \ \ \ \ \  
								
{{n}\choose{r}}
</font>