HW #91, 2, 4, 6 - 82.1DENSITY CURVES(a) Sketch a density curve that is symmetric but has ashape different from that of the standard normal curve.
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(b)Sketch a density curve that is strongly skewedto the left.2.2A UNIFORM DISTRIBUTIONThe figure below shows the density curve of auniformdistribution. The curve takes the constant value 1 over the interval from 0 to 1 and is zero outside therange of values.This means that data described by this distribution take values that are uniformlyspread between 0 and 1.Use areas under this density curve to answer the following questions.
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(b)What percent of the observations lies above 0.8?
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(c) What percent of the observations lie below 0.6?
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(d) What percent of the observations lie between 0.25 and 0.75?
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2.4FINDING MEANS AND MEDIANSThe figure below displays three density curves, each withthree points indicated.At which of these points on each curve the mean and median fall?(a) mean __A___
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(c) mean __A__median __B___