Data task 4: A health-service planning team needs a rapid, accurate calculation from the stated data. The setting is a primary-care network. Find the arithmetic mean of 63, 70, 77, 84, 91.

Data task 4: A health-service planning team needs a rapid, accurate calculation from the stated data. The setting is a primary-care network. Find the arithmetic mean of 63, 70, 77, 84, 91.

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