2. Suppose that 25% of the college seniors support an increase in federal funding for care of the elderly. in a survey. 80 college seniors are randomly selected. (For random samples, we can always assume independence.) Suppose X is the number of college seniors who support an increase in federal funding for care of the elderly among 80 college seniors. (3) Find out the mean and the standard deviation. (b) What is the probability that at least 30 of them support the increased funding? (Hint: Use the \"normal approximation to the binomial" instead of using the binomial formula multiple times.) (c) What are the two conditions to use the normal approximation in part (b)? Are those conditions satisfied in the given situation