BUILD FLUENCY. EARN YOUR ASCENT.Sign in Year 5
Validate categorical and numerical data, interpret mode and shape, and plan fair investigations.
Free examples and worked answers. No account needed.
Practise the method.
Validate categorical and numerical data, interpret mode and shape, and plan fair investigations.
Validate categorical and numerical data, interpret mode and shape, and plan fair investigations.
Example 1
In this travel survey, which category is the mode?
Show worked answer
Answer: Car
- The mode is the category with the highest frequency.
- Car has 14 responses, more than each other category.
Example 2
Which description is supported by the book-count data?
Books read during one week| Books read | Students |
|---|
| 0 | 4 |
|---|
| 1 | 13 |
|---|
| 2 | 5 |
|---|
| 3 | 3 |
|---|
| 4 | 1 |
|---|
Show worked answer
Answer: 1 book was the most common count; only a few students read 3 or 4 books.
- The largest frequency is 13 at 1 book.
- Frequencies for 3 and 4 books are small. Describe the distribution in this context.
Example 3
A spreadsheet records each student's number of pets. Entries must be whole numbers from 0 to 20. Which spreadsheet row needs checking?
Show worked answer
Answer: 5
- Check that each entry is a whole-number count from 0 to 20.
- Row 5 contains absent, which does not meet the rule. Check the source before correcting it.
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