Data task 64: 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 74, 81, 88, 95, 11.

Data task 64: 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 74, 81, 88, 95, 11.

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