Question detail
calculator check: a bag has 2 blue counters and 7 red counters. Find the probability of choosing a blue counter.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Graphs
Question
- A. 0.222
- B. 2.222
- C. -1.778
- D. 0.444
Answer
The correct answer is 0.222.
Explanation
calculator check uses Straight-line graphs: identify the quantities, do the stated operation, and select 0.222 because it matches the verified final answer.
Common mistake
Straight-line graphs common mistake 1
Writing a final answer without showing the method that justifies it. This can weaken answers for: [Foundation and Higher] Use y = mx + c to identify parallel lines and find equations of lines from points and gradients..
Show the method first, then give the final answer in the required form. Apply this directly to Straight-line graphs.
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