3A · Chapter 7 · Practice
Chapter practice examination
This original untimed public practice examination is not a secure school or placement test.
This original untimed public practice examination is not a secure school or placement test. No name, account, or answer is transmitted to any server.
Assessment · 20 questions
Problems
Try the questions first. The complete answer key is provided separately to parents.
Check your work: Finish the problems first, then ask a parent or tutor to review them with the separate answer-key copy.
- A1
Two charts show the same values but one y-axis begins at 20. Why can the second look more dramatic?
- A2
Why is a pictograph with key 1 symbol = 5 different from a pictograph with key 1 symbol = 1?
- A3
Read the bar graph below. How many more items are shown on Wednesday than Thursday?
Read using the vertical axis; equally spaced intervals represent 4 items each. - A4
Refer to the collection table below. If a new pictograph uses one symbol per 2 collected items, how many symbols are needed altogether?
Original data table (cans) Category Cans Paper 16 Cans 12 Glass 8 Use the table values to draw or interpret the graph requested. - A5
A chart uses vertical marks separated by 10. A bar reaches the third mark above zero. What does it represent?
- A6
A pictograph uses half a symbol for 2 students. How many students does a full symbol represent?
- A7
Use the table below to draw a bar graph with a scale of 2 buses per interval. Which day is busiest, and how many buses arrived?
Original data table (buses) Category Buses Monday 12 Tuesday 18 Wednesday 16 Use the table values to draw or interpret the graph requested. - A8
Read the bar graph below. What would be a sensible number of items per grid interval, and why?
Read using the vertical axis; equally spaced intervals represent 5 items each. - A9
Using the table below, draw a labeled bar graph starting at zero. How many children voted altogether?
Original data table (votes) Category Votes Tag 14 Soccer 17 Chess 9 Use the table values to draw or interpret the graph requested. - A10
Use the pictograph key. What is the difference in items between Cans and Glass?
Pictograph: read the key and scale carefully before solving. - A11
Read the bar graph below. Which day had three times as much rain as the last day, and how many millimeters was that?
Read using the vertical axis; equally spaced intervals represent 3 millimeters each. - A12
Read the bar graph below. What is the difference between the largest and smallest categories?
Bar graph: read the key and scale carefully before solving. - A13
Read the bar graph below. What is the difference between the largest and smallest categories?
Bar graph: read the key and scale carefully before solving. - A14
Read the bar graph below. What is the difference between the largest and smallest categories?
Bar graph: read the key and scale carefully before solving. - A15
Use the pictograph key. What is the difference in items between Glass and Cans?
Pictograph: read the key and scale carefully before solving. - A16
Read the bar graph below. What is the difference between the largest and smallest categories?
Bar graph: read the key and scale carefully before solving. - A17
Use the pictograph key. What is the difference in items between Glass and Cans?
Pictograph: read the key and scale carefully before solving. - A18
Use the library data table below. How many books were lent altogether?
Original data table (books) Category Books Mon 10 Tue 15 Wed 20 Use the table values to draw or interpret the graph requested. - A19
What is wrong with drawing a bar for 18 that is shorter than a bar for 12 on the same zero-based scale?
- A20
Use the pictograph key. What is the difference in votes between Art and Drama?
Pictograph: read the key and scale carefully before solving.