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Wine and cancer in women Some studies have sug gested that a nightly glass of...

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Wine and cancer in women Some studies have sug gested that a nightly glass of wine may not only take the edge off a day but also improve health Is wine good for your health A study of nearly 1 3 million middle aged British women examined wine consump tion and the risk of breast cancer The researchers were interested in how risk changed as wine con sumption increased Risk is based on breast cancer rates in drinkers relative to breast cancer rates in non drinkers in the study with higher values indicating greater risk In particular a value greater than 1 indi cates a greater breast cancer rate than that of non drinkers Wine intake is the mean wine intake in grams of alcohol per day one glass of wine is approx imately 10 grams of alcohol of all women in the study who drank approximately the same amount of wine per week Here are the data for drinkers only 16 CANCER Wine intake x grams of 2 5 8 5 15 5 26 5 alcohol per day Relative risk y 1 00 1 08 1 15 1 22 a Make a scatterplot of these data Based on the scat terplot do you expect the correlation to be positive or negative Near 1 or not b Find the correlation r between wine intake and rela tive risk Do the do

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