Question 607832
P(X = x) = (n C x)*(p)^(x)*(1-p)^(n-x)


P(X = 3) = (10 C 3)*(0.3)^(3)*(1-0.3)^(10-3)


P(X = 3) = (10 C 3)*(0.3)^(3)*(0.7)^(10-3)


P(X = 3) = (120)*(0.3)^(3)*(0.7)^7


P(X = 3) = (120)*(0.027)*(0.0823543)


P(X = 3) = 0.266827932


P(X = 3) = <font color="red">0.267</font>