(a) What percentage of the area under the normal curve lies to the left of ?? (b) What percentage of the area under the normal curve lies between ??? and ? + ?? (c) What percentage of the area under the normal curve lies between ?? 3? and ? + 3?? What percentage of the area under the normal curve lies as given below? (a) to the right of ? (b) between ? – 2? and ? + 2? (c) to the right of ? + 3? (Use 2 decimal places.)