that analyzed scalp hair samples from 22 participants with epilepsy and 23 participants without epilepsy, checking for differences in levels of copper, iron, zinc, magnesium, and calcium. The results...

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Extracted text: that analyzed scalp hair samples from 22 participants with epilepsy and 23 participants without epilepsy, checking for differences in levels of copper, iron, zinc, magnesium, and calcium. The results are summarized in the table below. Copper Iron Zinc Magnesium Calcium Males, epileptic Males, nonepileptic Females, epileptic Females, nonepileptic 14 6 211 329 947 19 9 200 259 960 10 7 218 444 1,143 16 15 218 505 1,162 Average trace element concentrations (ug/8) in scalp hair 1. If it were possible to measure the presence of copper in the hair of all males with epilepsy in the world, do you think the average would be exactly 14 pg/g? Explain your thinking. 2. The journal article that contains the results of the study actually reports that males with epilepsy have an average of 14 ± 9 µg/g of copper in their scalp hair. What do you think 14 + 9 µg/g means in this situation?