Hence, the correct answer is option (b).
In a histogram the class interval or the groups are taken along
(a) Y-axis (b) X-axis
(c) both of X and Y axis (c) in between X and Y axis
The parabola y2=x is symmetric about
The graph of y = a is
(a) the x - axis
(b) the y - axis
(c) a line parallel to y - axis
(d) a line parallel to x - axis