Question

the bar graph above shows the results of a survey in which people were asked which class they prefer. (results were rounded to the nearest fifteen)
based on the graph, how many more people prefer english than math?
15 ✓
based on the graph, how many people prefer either science or history?
135 ✗
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Explanation:

First Sub - Question: How many more people prefer English than Math?

Step1: Find number of people who prefer English.

From the bar graph, the number of people who prefer English is 45.

Step2: Find number of people who prefer Math.

From the bar graph, the number of people who prefer Math is 30.

Step3: Calculate the difference.

To find how many more people prefer English than Math, we subtract the number of people who prefer Math from the number of people who prefer English. So, \(45 - 30=15\).

Second Sub - Question: How many people prefer either Science or History?

Step1: Find number of people who prefer Science.

From the bar graph, the number of people who prefer Science is 135.

Step2: Find number of people who prefer History.

From the bar graph, the number of people who prefer History is 120.

Step3: Calculate the sum.

To find the number of people who prefer either Science or History, we add the number of people who prefer Science and the number of people who prefer History. So, \(135 + 120 = 255\).

Answer:

s:

• For "How many more people prefer English than Math?": 15
• For "How many people prefer either Science or History?": 255