A histogram is a pictorial representation of the grouped data in which class intervals and frequency are respectively taken along:
horizontal and vertical axes
Explanation for correct answer:
(d) In the histogram graph, the horizontal X-axis is always chosen as the class-interval and the vertical Y-axis is choose as frequency of the given data.
Explanation for incorrect answer:
(a) The vertical Y-axis is chosen for the depiction of frequency and horizontal X-axis is for the class-interval. So, the reverse cannot be true.
(b) The horizontal axis only depicts the class-interval.
(c) The vertical axis only depicts the frequency of the given data.
Hence, option (d) is correct.