# Let #X# be a binomial random variable with #p=0.3# and #n=15#. What is #P(X>9)#?

##### 1 Answer

Apr 26, 2017

#### Explanation:

Here we can use the cmf to solve, stated as

so now

the answer is around

intuitively if we only have a .3 probability then getting 10 or more out of 15 should be relatively impossible.