Statistics Quest

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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Application, difficulty 1 of 3

Tutored vs untutored

Not started

In student_scores, compute the mean exam_score of tutored students and of untutored students. Give both to 2 decimal places.

Data: student_scores · Open in the lab to explore and calculate.