4) A random sample of 1000 eligible voters is drawn. Let X : 5 the number who actually voted in the last election. It is known that 60% of all eligible voters did vote. a) Find the approximate probability that 620 people in the sample voted. Hint: Use a normal approximation to the binomial distribution. Use the continuity correction. b) Find the approximate probability that more than 620 people in the sample voted. Hint: Use a normal approximation to the binomial distribution. Use the continuity correction