Data task 84: A pre-service teacher is using the data for classroom planning, assessment or school operations. The setting is an excursion planning task. Find the arithmetic mean of 43, 50, 57, 64, 71.

Data task 84: A pre-service teacher is using the data for classroom planning, assessment or school operations. The setting is an excursion planning task. Find the arithmetic mean of 43, 50, 57, 64, 71.

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