Tar Amounts in Cigarettes Narrative

question 194

Essay

Tar Amounts in Cigarettes Narrative
Suppose the amount of tar in cigarettes is normally distributed, with mean 3.5 mg and standard deviation 0.5 mg.
-Refer to Tar Amounts in Cigarettes Narrative. "Low tar" cigarettes must have tar content below the 25th percentile of the tar content distribution. What is the value which is the 25th percentile of the tar content distribution?

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