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Consider a normal distribution curve where 65-th percentile is at 19 and the 30-th percentile is...

Consider a normal distribution curve where 65-th percentile is at 19 and the 30-th percentile is at 10. Use this information to find the mean, μ , and the standard deviation, σ , of the distribution.


a) μ=

b) σ=


Math   Statistics-And-Probability   
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