The decimal 0.75 is equivalent to 3/4
Answer:
Probability, P(X=3)=0.05371
Step-by-step explanation:
The experiment consists of 12 Bernoulli trials,n=12
Where sucess is defined with difference between the speakers and failure is defined with no difference between the speakers
Since people are guessing,the Probability P of sucess= 1/2
Therefore P(X=3) = b(3; 12, 0.5) = (12/3) (0.5)^3× (0.5)^9
P( X=3) = 0.0537
The answers my dear friends is 15x^6-20x^5+10x^4
Th square root of 25 is, 5
The answer is 11-n. Hope this helps.