Question: The quantitative data set under consideration has roughly a bell-shaped distribution. Apply the empirical rule to answer the following question. A quantitative data set has

The quantitative data set under consideration has roughly a bell-shaped distribution. Apply the empirical rule to answer the following question. A quantitative data set has mean 21 and standard deviation 1. Approximately what percentage of the observations lie between 20 and 22? Approximately |% of the observations lie between 20 and 22. (Type an integer or a decimal, Round to one decimal place as needed.)

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