Fifty-nine percent of likely U.S. voters think that most school textbooks put political correctness ahead of accuracy. You randomly select seven likely U.S. voters and ask them whether they think that most school textbooks put political correctness ahead of accuracy. The random variable represents the number of likely U.S. voters who think that most school textbooks put political correctness ahead of accuracy.
Find the
(a) Mean,
(b) Variance,
(c) Standard deviation of the binomial distribution for the given random variable,
(d) Interpret the results.