1Wilhen nicotine is absorbed by the body, cotinine is produced. A measurement of cotinine in the body is therefore a good indicator of how much as person smokes. Listed below are the reported numbers of cigarettes smoked per day and the measured amounts of nicotine (in ng l ml). (The values are from randomly,r selected subjects in the National Health Examination Survey). Is there a signicant linear correlation? Explain the result. Use the rank correlation