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Data are drawn from a bell-shaped distribution with a mean of 230 and a standard deviation...

Data are drawn from a bell-shaped distribution with a mean of 230 and a standard deviation of 5. There are 1,700 observations in the data set. a. Approximately what percentage of the observations are less than 240? (Round your answer to 1 decimal place.) b. Approximately how many observations are less than 240? (Round your answer to the nearest whole number.)

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TOPIC:Empirical rule for a bell-shaped distribution.

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