Practice questions
A free sample of Brainlag Learn questions. Choose a course, then filter by topic and difficulty. Each question opens in Learn, where it is marked and explained.
1415 questions
| Practice questions | Topic | Difficulty |
|---|---|---|
| The median of a list | GCSE Maths: Statistics and charts | 2 marks |
| Mode and range | GCSE Maths: Statistics and charts | 2 marks |
| A missing value from the mean | GCSE Maths: Statistics and charts | 3 marks |
| Mean of two groups together | GCSE Maths: Statistics and charts | 3 marks |
| Compare two sets with an average and the range | GCSE Maths: Statistics and charts | 5 marks |
| Which average to use | GCSE Maths: Statistics and charts | 1 mark |
| Adding to or multiplying every value | GCSE Maths: Statistics and charts | 2 marks |
| How one extreme value moves the mean | GCSE Maths: Statistics and charts | 4 marks |
| Mean from a frequency table | GCSE Maths: Statistics and charts | 3 marks |
| Mode and median from a frequency table | GCSE Maths: Statistics and charts | 3 marks |
| The f × x column and the mean | GCSE Maths: Statistics and charts | 4 marks |
| Estimate the mean of grouped data | GCSE Maths: Statistics and charts | 4 marks |
| Modal class and counting from a grouped table | GCSE Maths: Statistics and charts | 2 marks |
| The class that contains the median | GCSE Maths: Statistics and charts | 2 marks |
| A missing frequency from the mean | GCSE Maths: Statistics and charts | 3 marks |
| Why a grouped mean is an estimate | GCSE Maths: Statistics and charts | 1 mark |
| Totals and counts from a frequency table | GCSE Maths: Statistics and charts | 3 marks |
| Complete a tree for two independent events | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 4 marks |
| Two picks with replacement from a drawn tree | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 4 marks |
| Complete a tree without replacement, then use it | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 5 marks |
| Which calculation gives one of each? | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 1 mark |
| At least one, when the second event depends on the first | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 3 marks |
| A tree with two sources, then an expected number | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 4 marks |
| Given the same colour, both one colour | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 4 marks |
| Given at least one, both | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 3 marks |
| How many counters, from a probability without replacement | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 6 marks |
| Three independent trials: exactly two, at least one | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 5 marks |
| Relative frequency from a table, then a prediction | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 3 marks |
| Is the dice biased? Compare with the expected number | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 2 marks |
| The most reliable estimate, and pooling results | GCSE Maths: Probability and statistics: trees, experiments, samples and claims | 3 marks |
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