write an expression using sigma notation that can be used to find each probability.
at least 10 heads when 15 coins are tossed

Question

write an expression using sigma notation that can be used to find each probability.
 at least 10 heads when 15 coins are tossed

mathmale · Answer

First, how would you express the probability of coming up with EXACTLY 10 heads when a fair coin is tossed 15 times?

anonymous · Answer

do the tree the diagram

mathmale · Answer

Have you done bionomial probability problems before?  If so, which method or methods have you used?  Examples:  a table of binomial probabilities, a formula for calculating such a probability, or a TI-83 or -84 calculator.

anonymous · Answer

is normal curve part of it 
i need normalcdf

anonymous · Answer

binompdf (n,p,r)

mathmale · Answer

no, there's no relationship.  What kind of help are you hoping for? 

That's better:  bionompdf(n,p,r).  It's more often written as binompdf(n,p, x).
Here, your n = ?
          your x = ?
   and  your p=?

mathmale · Answer

@awsome500 :  I don't know your circumstances, but from the evidence I can see, you just logged off OpenStudy without responding to my latest questions.  Would you please stick with our discussion next time, or inform me that you're leaving?