Data task 74: A pre-service teacher is using the data for classroom planning, assessment or school operations. The setting is a student progress meeting. Find the arithmetic mean of 13, 20, 27, 34, 41.

Data task 74: A pre-service teacher is using the data for classroom planning, assessment or school operations. The setting is a student progress meeting. Find the arithmetic mean of 13, 20, 27, 34, 41.

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