What percentage of children first walk at age

Reference no: EM133706948

Problem: Suppose that the ages at which children first walk alone are normally distributed with mean 11.5 months and standard deviation 1.1 months. Sketch the distribution of first walking ages in children. What percentage of children first walk at age 12.3 months or older? Shade the relevant area of the distribution, eyeball-estimate, and compute the percentage. Suppose that kindergarten classrooms are created by randomly selecting individuals from the children population. Each kindergarten class has 20 children in it. Sketch the distribution of the mean first walking ages for these kindergarten classrooms. What percentage of such classrooms have mean first walking age of 12.3 months or older? Shade the relevant area of the distribution, eyeball-estimate, and compute the percentage.

Reference no: EM133706948

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