Handling Data 3
3 marks · NormalThe spinner below shows the possible outcomes when spun.
| Sector | Red | Blue | Green |
|---|---|---|---|
| Frequency | 5 | 3 | 2 |
Use the table to write down:
The probability of getting red.
The probability of not getting blue.
The most likely outcome (mode).
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
(a) 5/10 or 0.5
(b) 7/10 or 0.7
(c) Red
Also accept: Probability as fraction or decimal, mode as 'red'
Common mistakes: Incorrect total or confusing not blue for blue
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Correct probability from table for red outcome.
B2 (b) · 1 mark · Correct probability of not getting blue outcome.
B3 (c) · 1 mark · Correct identification of mode (sector with highest frequency).
Worked solution
Total spins: 5 + 3 + 2 = 10
a) Red: 5/10 = 0.5
b) Not blue: (5+2)/10 = 7/10 = 0.7
c) Mode: Red (highest frequency)