Handling Data 4
3 marks · NormalThe table below shows the results of spinning a spinner 25 times.
| Outcome | Frequency |
|---|---|
| A | 7 |
| B | 5 |
| C | 9 |
| D | 4 |
a) Complete the table by adding a column for Relative Frequency for each outcome. Write your answers as decimals to 2 decimal places.
(a)[3 marks]
Complete the table with relative frequencies.
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.
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Common mistakes: Incorrect division by wrong total; Rounding to 1 decimal place only
Show mark scheme and worked solution
Marking points
M1 (a) · 1 mark · Finds total number of spins correctly (25).
A1 (a) · 1 mark · Divides each frequency by 25 for at least two outcomes.
A2 (a) · 1 mark · All relative frequencies correct to 2 decimal places.
Worked solution
Total number of spins = 7 + 5 + 9 + 4 = 25
| Outcome | Frequency | Relative Frequency |
|---|---|---|
| A | 7 | 0.28 |
| B | 5 | 0.20 |
| C | 9 | 0.36 |
| D | 4 | 0.16 |