A set of data is normally distributed with a mean of 3.5 and a standard deviation of 0.6. State whether the first area is bigger, the second area is bigger, or the two areas are equal in each of the following situations for these data:
(a) The area above the mean and the area below the mean
(b) The area between 2.9 and 4.1 and the area between 3.5 and 4.7
(c) The area between the mean and 3.5 and the area above 5.3
(d) The area below 3.6 and the area above 3.4
(e) The area between 4.1 and 4.7 and the area between 2.9 and 3.5