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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Guided, difficulty 1 of 3

An onboarding experiment

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A banking app randomly assigned new users to the current onboarding flow (A) or a simplified flow (B). In group A, 600 of 1,500 users completed account set-up; in group B, 761 of 1,620 did.

By how many percentage points is B's completion rate higher than A's? Give 1 decimal place.