The probability is 8 out of 20 or 40 percent
Answer:
9x-9
Step-by-step explanation:
the expression on the left simplifes to be 9x-8 so anything other than that will not produce a solution
examples: 9x+1, -9x-8, 10x+3, 12x . . .
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