Question

For the given data set, you wish to make a histogram. What will be the width of each bar, given that 2.5kg is 1 unit in the x axis?

$$\begin{array}{cc}\text{Weights(Kg)}& \text{No. of persons}\\ 40-45& 4\\ 45-50& 12\\ 50-55& 13\\ 55-60& 6\\ 60-65& 5\end{array}$$

• A. 5
• B. 10
• C. 15
• D. 20

Answer 1

The correct option is B

10

The width of the bar should be equivalent to 5 kg since this is the class interval.

But 2.5 kg equates to 1 unit in the x-axis.

Since, 2.5 $\times$ 2 = 5 , the width of each baris 2 units.