Suppose that a random sample of adult males has a sample mean heart mass of x¯=310.1 grams, with a sample standard deviation of s=6.6 grams. Since adult male heart masses are generally symmetric and bell-shaped, we can apply the Empirical Rule. Between what two masses do approximately 68% of the data occur?  Round your answer to the nearest tenth.     Approximately  $68\%$68%​ of the men's heart masses are between _____  grams and ______  grams.

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Suppose that a random sample of adult males has a sample mean heart mass of x¯=310.1 grams, with a sample standard deviation of s=6.6 grams. Since adult male heart masses are generally symmetric and bell-shaped, we can apply the Empirical Rule.

Between what two masses do approximately 68% of the data occur? 

Round your answer to the nearest tenth.

 

 
Approximately  $68\%$68%​ of the men's heart masses are between _____  grams and ______  grams.
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