Inference Bar Graphs

A company makes four different computer models: XL10, XL50, XL200, and XL900. The company surveyed customers who bought these computers last year to determine the satisfaction/dissatisfaction rate among purchasers. The results of the survey are shown in the graph provided.

Which conclusion is supported by the graph?

• The purchasers of the XL50 had the highest rate of satisfaction.

• The purchasers of the XL900 had the highest rate of satisfaction.

• The purchasers of the XL10 had the highest rate of dissatisfaction.

• The purchasers of the XL200 had the highest rate of dissatisfaction.

A class has taken a survey about their favorite treats.

Which bar graph best represents the data from this survey?

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Which bar graph displays the same information as the table provided?

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Based on the bar graph, how many more students take the bus than car?

• 25

• 35

• 10

• 15

The bar graph shows the numbers of boys and girls in each grade level. Which statement is supported by the information in the graph? Choose 2 correct answers.

• The number of girls was greater in class 6 than the number of boys in class 8.

• The number of girls in class 2 is twice the number of boys in class 5.

• The number of boys in class 5 is the same as the number of boys in class 9.

• The number of boys in class 6 is twice the number of boys in call 9

The bar graph shows a company's income and expenses over the last 5 years. Categorize the statements as true or false. There are 2 true.

Groups:

(a) True

,

(b) Not True

• The combined expenses in Years 3 and 4 were $300,000 more than the combined income in Years 3&4.

• Expenses have increased $100,000 each year over the last 5 years.

• The income in Year 5 was twice the income in Year 1.

• The combined income in Years 1, 2, and 3 was equal to the combined expenses in Years 1, 2, and 3

• Expenses have increased $200,000 each year over the last 5 years.

What fraction of the total number of visitors visited in 2010? Express in simplest form.

Mathematical Equivalence

ON

Petunia conducted a random survey of students to determine the favorite genre of music of 50 students. The results are shown in the bar graph. Based on the information in the graph, which inference about the students is valid?

• Girls like country music more than boys like rap music

• More girls than boys like rock music

• Boys like country music more than rock music

• Boys like rock music more than girls like rap music

Tags

inferences

bar graph

teks 7.12C

​ (a)  

• G

• F

• H

• J

What is the shape of this bar graph?

(a)  

• Skew left

• Skew right

• Symmetrical

• uniform