According to a survey, 90% of senior executives at major U.S corporations felt that the federal budget will not be balanced by the year 2015. Suppose that this result is true for all senior executives at U.S. corporations. Letx denote the number of senior executives in a random sample of 10 who hold this opinion. Write the Probability distribution of x and draw a line graph of the probability distribution. find the mean and standard deviation of x.