1.

During a medical check-up, the number of heartbeats per minute of 30 patients were recorded and summarized as follows:Number of heartbeats per minute65−6868−7171−7474−7777−8080−8383−86Number of patients2438742Find the mean heartbeats per minute for these patients, choosing a suitable method.

Answer»

During a medical check-up, the number of heartbeats per minute of 30 patients were recorded and summarized as follows:


Number of heartbeats per minute65−6868−7171−7474−7777−8080−8383−86
Number of patients2438742


Find the mean heartbeats per minute for these patients, choosing a suitable method.



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