Practice, difficulty 2 of 3
Questions worth asking
A food-delivery platform announces: “Restaurants that joined our premium listing saw orders rise by 35%.” Select all the questions that would help you judge the claim.
Practice
Practise until it sticks
Choose a topic, a skill or a difficulty. Calculation exercises have new versions with fresh numbers once you have solved them, so you can practise the method rather than memorise an answer.
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