Two adjacent rectangles in a histogram have equal heights. The first represents the class 10–14 and the second represents the class 14–22. Which statement about their class frequencies is correct?
(a) The second class has half the frequency of the first.
(b) The second class has the same frequency as the first.
(c) The second class has twice the frequency of the first.
(d) No relation can be decided from the given information.