2. Statistical data for the last 20 years indicate that the life expectancy of senior citizens in a certain city is 67 years with a standard deviation of 2 years. Assuming a normal distribution, how many of the 1,000 senior citizens living in the city will a) Die below 61 years old? (10 points) b) Die above 70 years old? (10 points) c) Die above 65 years old but below 70 years old?(10 points) d) Die from 65 years old to 70 years old? (10 points) e) Die at 67 years old? (10 points)