Use the image to answer the question.
A histogram shows ranges of the wattage of light bulbs per numbers of light bulbs. The horizontal axis shows the wattage of light bulbs ranging from 0 to 40 and then 40 to 160 in increments of 30. The vertical axis ranges from 0 to 5 in increments of 1. The graph shows the following data: 40 to 70 watts for 4 bulbs; 70 to 100 watts for 3 bulbs; 100 to 130 watts for 5 bulbs; 130 to 160 watts for 4 bulbs. This histogram shows the number of watts of each light bulb in Buddy’s apartment. How many more light bulbs are in the 100-to-130-watt bin than in the 70-to-100-watt bin?
a)8
b)2
c)1
d)5
The number of light bulbs in the 100-to-130-watt bin is 5, and the number of light bulbs in the 70-to-100-watt bin is 3.
Therefore, the difference in the number of light bulbs in these two bins is 5 - 3 = 2.
So, the correct answer is b) 2.