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Molly injured her ankle 12 weeks ago. Each week, her physical therapist has been recording her pain on a scale of 0-100. In her last week of treatment, her therapist tabulated Molly's pain scores; the mean was 60; the standard deviation was 12. Molly's pain score at her very first appointment was 75. Find the z score for this value. Please round your answer to 2 decimal places.
O 1.25
O 12.50
O 1.25
O 2.50

Sagot :

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