Question
Asked Feb 26, 2019
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The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.909 g and a standard
deviation of 0.311 g. Find the probability of randomly selecting a cigarette with 0.629 g of nicotine or less.
P(X<0.629 g)
Enter your answer as a number accurate to 4 decimal places. NOTE: Answers obtained using exact z-scores or z-scores
rounded to 3 decimal places are accepted.
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The amounts of nicotine in a certain brand of cigarette are normally distributed with a mean of 0.909 g and a standard deviation of 0.311 g. Find the probability of randomly selecting a cigarette with 0.629 g of nicotine or less. P(X<0.629 g) Enter your answer as a number accurate to 4 decimal places. NOTE: Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

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Expert Answer

Step 1

The random variable X denotes the amounts of nicotine in a certain brand of cigarette are normally distributed with mean of 0.909g and standard deviation of 0.311g. Therefore,

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Step 2

Computing probability of selecting a cigarette with 0.629 of nicotine or less:

The probability ...

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