Data task 64: A New Zealand Level 2 learner connects multiple ideas in an applied local or national context. Two groups have sizes 34 and 37, with means 62 and 66. What is the combined mean?

Data task 64: A New Zealand Level 2 learner connects multiple ideas in an applied local or national context. Two groups have sizes 34 and 37, with means 62 and 66. What is the combined mean?

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