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For women aged 18-24, systolic blood pressures ( in mm Hg) are normally distributed with a...

For women aged 18-24, systolic blood pressures ( in mm Hg) are normally distributed with a mean of 114.8 and a standard deviation of 13.1 ( based on data from the National Health survey. Hypertension is commonly defined as a systolic blood pressure above 140. If 4 women in that age bracket are randomly selected, what is the probability that their mean systolic blood pressure is above 140?

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lere are given xuar (124.84, 13:17 o PX>140) = T-pru-114.8 T 2-1 cu-114.8 73.1 1-PCżc T40 -114.8 131 I- Plzc25.2 +2+ PC269524

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