Data task 224: 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 99, 15, 22, 29, 36.

Data task 224: 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 99, 15, 22, 29, 36.

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