ITBS Data Interpretation and Graphs 4

Question 1

A line graph shows a company's profit over 4 years: Year1=$10k, Year2=$15k, Year3=$12k, Year4=$18k. Between which two consecutive years did profit decrease?

Accepted Answer

Year 2 to Year 3

Answer

Profit dropped from $15k in Year 2 to $12k in Year 3.

Question 2

A histogram shows the number of students scoring in these ranges: 60–69=5, 70–79=12, 80–89=18, 90–99=10. How many students scored 80 or above?

Accepted Answer

28

Answer

Students scoring 80–89 + 90–99 = 18 + 10 = 28.

Question 3

A pie chart shows expenses: Rent=50%, Food=25%, Transport=15%, Other=10%. If total expenses are $2,000, how much is spent on Food?

Accepted Answer

$500

Answer

25% of $2,000 = 0.25 × $2,000 = $500.

Question 4

A double line graph compares two cities' temperatures in January. City A shows 32°F and City B shows 55°F. Which statement is supported by the graph?

Accepted Answer

City B is warmer than City A in January

Answer

City B's line is higher at 55°F compared to City A's 32°F in January.

Question 5

A table shows these values: 5, 10, 15, 20, 25. What is the mean of these numbers?

Accepted Answer

15

Answer

(5+10+15+20+25) ÷ 5 = 75 ÷ 5 = 15.

ITBS - Iowa Test of Basic Skills Exam Practice Test

ITBS - Iowa Test of Basic Skills Exam Practice Test

ITBS Data Interpretation and Graphs 4