Math 7 · Unit 16: Interpreting and discussing results · Cambridge Lower Secondary Maths Stage 7

Questions

1. 1. Question 1a: this dual bar chart shows the favourite type of film of the students in class 7B. How many of the girls choose 'musical'?

   • 11
   • 5
   • 8
   • 3
   Check

2. 2. Question 1b: how many of the boys choose 'action'?

   • 4
   • 3
   • 5
   • 9
   Check

3. 3. Question 1c: how many more boys than girls choose 'science fiction'?

   • 3
   • 10
   • 7
   • 4
   Check

4. 4. Question 1d: how many students are there in class 7B?

   • 30
   • 14
   • 8
   • 16
   Check

5. 5. This dual bar chart shows the favourite type of film of the students in class 7B. Which type of film is chosen most by the girls, by the boys and by the whole class?

   • girls: action; boys: science fiction; whole class: musical
   • girls: musical; boys: science fiction; whole class: science fiction
   • girls: musical; boys: action; whole class: science fiction
   • girls: musical; boys: science fiction; whole class: musical
   Check

6. 6. Question 2a: this dual bar chart shows the emails received by two teachers. Which teacher received the most work emails?

   • Mr Harris
   • They received the same.
   • Mrs Khan
   Check

7. 7. This dual bar chart shows the types of emails received one day by two teachers. Which teacher received the most junk emails?

   • Mrs Khan
   • They received the same.
   • Mr Harris
   Check

8. 8. Question 2c: how many more emails from friends did Mrs Khan receive than Mr Harris?

   • 15
   • 8
   • 1
   • 2
   Check

9. 9. Question 2d: work out the total number of emails received by Mrs Khan and by Mr Harris.

   • Mrs Khan 25, Mr Harris 26
   • Mrs Khan 12, Mr Harris 10
   • Mrs Khan 25, Mr Harris 25
   • Mrs Khan 26, Mr Harris 25
   Check

10. 10. This compound bar chart shows the types of emails received one day by Miss Davies. Copy and complete: Miss Davies received …… work emails. (Numbers to choose from: 20, 6, 18, 2, 12.)

    • 12
    • 2
    • 6
    • 18
    Check

11. 11. This compound bar chart shows the types of emails received one day by Miss Davies. Copy and complete: Miss Davies received a total of …… emails from work and from friends. (Numbers to choose from: 20, 6, 18, 2, 12.)

    • 18
    • 12
    • 20
    • 6
    Check

12. 12. This compound bar chart shows the types of emails received one day by Miss Davies. Copy and complete: Miss Davies received a total of …… junk emails and emails from work and from friends. (Numbers to choose from: 20, 6, 18, 2, 12.)

    • 12
    • 20
    • 18
    • 2
    Check

13. 13. This compound bar chart shows the types of emails received one day by Miss Davies. Copy and complete: Miss Davies received 18 − 6 = …… emails from friends. (Numbers to choose from: 20, 6, 18, 2, 12.)

    • 12
    • 24
    • 2
    • 6
    Check

14. 14. This compound bar chart shows the types of emails received one day by Miss Davies. Copy and complete: Miss Davies received 20 − 18 = …… junk emails. (Numbers to choose from: 20, 6, 18, 2, 12.)

    • 38
    • 12
    • 2
    • 18
    Check

15. 15. Question 4a: this compound bar chart shows the favourite magazines of class 7D. What is the total number of students?

    • 4
    • 20
    • 28
    • 30
    Check

16. 16. Question 4b: which magazine is the most popular, and which is the least popular?

    • most: sport; least: fashion
    • most: sport; least: quiz
    • most: health; least: fashion
    • most: quiz; least: health
    Check

17. 17. Question 4c: how many students chose sport, health, fashion and quiz?

    • sport 12, health 20, fashion 22, quiz 30
    • sport 12, health 8, fashion 2, quiz 8
    • sport 12, health 8, fashion 3, quiz 7
    • sport 10, health 10, fashion 2, quiz 8
    Check

18. 18. Question 5a: this compound bar chart shows the science exam results for class 11C. In which subject did the students get the most grade As, and the most grade Bs?

    • grade As: chemistry; grade Bs: chemistry
    • grade As: physics; grade Bs: biology
    • grade As: biology; grade Bs: chemistry
    • grade As: biology; grade Bs: physics
    Check

19. 19. Question 5b: how many students achieved a grade B and a grade A for biology?

    • grade B 10, grade A 30
    • grade B 30, grade A 20
    • grade B 10, grade A 20
    • grade B 20, grade A 10
    Check

20. 20. Question 5c: how many students achieved a grade B and a grade A for chemistry?

    • grade B 13, grade A 15
    • grade B 13, grade A 28
    • grade B 15, grade A 13
    • grade B 12, grade A 16
    Check