SOLUTION: An unfair coin comes up heads 52.7% of the time. The coin is flipped a total of 19 times. A) what is the probability you get exactly 12 heads? (19C12)(.527)^12(.473)7= .1335 (

Algebra ->  Probability-and-statistics -> SOLUTION: An unfair coin comes up heads 52.7% of the time. The coin is flipped a total of 19 times. A) what is the probability you get exactly 12 heads? (19C12)(.527)^12(.473)7= .1335 (      Log On


   

Question 635787: An unfair coin comes up heads 52.7% of the time. The coin is flipped a total of 19 times.
A) what is the probability you get exactly 12 heads?
(19C12)(.527)^12(.473)7= .1335 (not sure if correct)
B) What is the probability that you get exactly 11 tails?
(19C11)(.473)^11(.527)^8= .1338 (again not sure)
C) What is the probability that you get at most 16 tails?
Any help would be great. thank you so much
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

An unfair coin comes up heads 52.7% of the time. The coin is flipped a total of 19 times.

 A) what is the probability you get exactly 12 heads? 

(19C12)(.527)^12(.473)7= .1335 (not sure if correct)  .1225

B) What is the probability that you get exactly 11 tails?

 (19C11)(.473)^11(.527)^8= .1338 (again not sure)  .1192

C) What is the probability that you get at most 16 tails?

   P = 1 -P(17T) - P(18T) - P(19T) =  .9998

using stattrek.com  Bionomial Calculator as a reference