ISAT Data Interpretation: Graphs/Tables 2

Question 1

A line graph shows a city's average monthly rainfall (mm): Jan=40, Feb=35, Mar=55, Apr=80, May=110, Jun=95, Jul=60, Aug=50, Sep=70, Oct=85, Nov=65, Dec=45. Which two consecutive months show the greatest increase in rainfall?

Accepted Answer

Apr to May

Answer

Apr to May shows an increase of 30 mm (from 80 to 110), which is the largest consecutive monthly increase.

Question 2

A table shows four students' scores on three tests. Ali: 72, 85, 91. Bea: 88, 79, 84. Carl: 65, 90, 88. Dana: 95, 70, 76. Who has the highest mean score across all three tests?

Accepted Answer

Carl

Answer

Carl's mean is (65+90+88)/3 = 81, which ties with Dana (95+70+76)/3 = 80.3 — actually Carl's is 81 vs Dana's 80.3, so Carl has the highest.

Question 3

A pie chart shows how a school allocates its budget: Teachers' salaries 45%, Facilities 20%, Resources 18%, Administration 12%, Other 5%. If the total budget is $2,000,000, how much is spent on Facilities and Resources combined?

Accepted Answer

$720,000

Answer

Facilities (20%) + Resources (18%) = 38% of $2,000,000 = $760,000.

Question 4

A bar chart compares the number of books read per year by students in four classes: Class A=320, Class B=275, Class C=410, Class D=360. What percentage of the total books did Class C read?

Accepted Answer

29.8%

Answer

Total = 320+275+410+360 = 1365; Class C percentage = 410/1365 × 100 ≈ 30.0% — closest is 29.8% but the exact answer is 410/1365 = 30.04%, making 30.0% the closest, which corresponds to 30.0%.

Question 5

A scatter plot shows hours of study (x-axis) versus exam score (y-axis). The data points are: (1,52), (2,58), (3,65), (4,71), (5,79), (6,84), (7,90). What type of correlation does this data show?

Accepted Answer

Strong positive correlation

Answer

As study hours increase, scores consistently increase in a nearly linear pattern, indicating a strong positive correlation.

ISAT - International Student Admissions Test Practice Test

ISAT - International Student Admissions Test Practice Test

ISAT Data Interpretation: Graphs/Tables 2