Concept explainers
Trying trials. Your roommate is supervising an experiment where each trial consists of rolling a ten-sided die and guessing what will come up. (What’s the probability of success?) After n trials, she uses the formula given in Mindscape 35 to compute the margin of error associated with a 95% confidence interval. She tells you the value is 4.8% (or 0.048). Use this value and the formula from Mindscape 35 to determine the number of trials, n.
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The Heart of Mathematics: An Invitation to Effective Thinking
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