The ages of adults who reside in a particular community have a mean of 35 years...

The ages of adults who reside in a particular community have a mean of 35 years with a standard deviation of 5 years.

(a) According to Tchebysheff's rule, at least ___ proportion of adult residents have an age between 20 and 50 years.

(b) According to Tchebysheff's rule, at least ___ proportion of adult residents have an age between 25 and 45 years.

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orchestra answered 1 year ago

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