A biologist estimates that 60% of deer in the region carry a certain type of tick. For a sample of 300 deer selectetd at random, what is the chance that 186 or fewer deer have this tick?

Go to this site:

Binomial Calculator (http://www.stat.tamu.edu/~west/applets/binomialdemo.html)

For n, enter 300; p=.6
Prob X is 'at most' 186
Click compute. Your solution is given.