Question 60216: Assume tha tin a biominal experiment, a trial is repeated n times. find the proability of x successes gien the probablity p of success on a given trial with n=12, x=7 and p=0.4 (use table a-1)
Answer by funmath(2933)   (Show Source):
You can put this solution on YOUR website! Assume tha tin a biominal experiment, a trial is repeated n times. find the proability of x successes gien the probablity p of success on a given trial with n=12, x=7 and p=0.4 (use table a-1)
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If you are using the Triola Elementary Statistics book, their chart is set up so that you look at the far left column under n and find 12, then you look at the second column under x and find 7. Move your finger along the row until your in the .40 column and your answer is  .
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If you have a TI-83 or 84, you can hit, [2nd][vars][0]binomialpdf(n,p,x)[enter]
In your case n=12, p=.4, and x=7. They need to be separated by a comma. The answer your calculator will give you is: .1009023713, which is .101 when you round it off.
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If you wanted to do it with a regular scientific calculator.
 , n=12, x=7, p=.4, and q=1-.4=.6
or
Happy Calculating!!!
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