The distribution of weights for 12-month-old baby girls has mean μ= 9.7 kg. and standard deviation σ= 1.0 kg.   (a)Suppose that a 12-month-old baby girl weighs 7.7 kg. Approximately what weight percentile is she in? Provide only the numeric response, omit letters like st and rd.  (b) Suppose that a twelve-month old girl weighs 10.4 kg. Approximately what weight percentile is she in?   (c) Suppose that a twelve-month-old girl is in the 84th percentile in weight. Estimate her weight to the nearest tenth of a kilogram.

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