Not "How To?" but "What do we have here?"
I always emphasize this to my students. When first facing a math problem, especially a word problem, do not try to get the answer right away. This is an unrealistic expectation. The answer will come as the result of properly developing all the relevant, detailed information contained in the problem. Pay attention to the wording. Create a clear mental image of the situation the problem is describing. Sketch a graph, a table, or a drawing to represent the situation. Avoid jumping into pre-packaged, memorized formulas after having read the problem only once.
Inferring sample size from confidence interval
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The previous post reported that a study found a 95% confidence interval for
the the area of the Mandelbrot set to be 1.506484 ± 0.000004. What was the
sa...
12 hours ago
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