If X ~Bin(12,0.8),find:
a)P(X=2)
b)P(X>10)
HOW HOW HOW TO DO?><

Do you understand what a binomial function represents? Where are you having problems?

now my problem is the question given that X~Bin(12,0.8),izzit n=12,p=0.8?? I want to know the information first,if we ady know the all information,we can solve this question easily !so can u help me?thank you!! ~^^

Yes, you're right, n = 12, p = 0.8, does that help you to solve the above questions? What are your thoughts? :)