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The histograms of some sampling distributions are symmetrical. T-F What would make a histogram symmetrical, and...

The histograms of some sampling distributions are symmetrical. T-F What would make a histogram symmetrical, and give an example of a symmetrical distribution? & A random sample of size 36 is to be selected from a population that has a mean μ = 50 and a standard deviation σ of 10. Find the standard (z) score for a sample value of 40.

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