A Laboratory Technician Records the Life Span (In Months) of Rats

question 84

Multiple Choice

A laboratory technician records the life span (in months) of rats treated at birth with a fertility hormone. From the frequency distribution below, find the mean life span. Please round your answer to the nearest tenth.

• A) mean life span = 11.4 months
• B) mean life span = 10.3 months
• C) mean life span = 10.2 months
• D) mean life span = 9.7 months
• E) mean life span = 8.5 months

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