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Normal Probability: Amount of Pyridoxine

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The amount of pyridoxine (in grams) in a multiple vitamin is normally distributed with = 110 grams and = 25 grams. What is the probability that a randomly selected vitamin will contain between 100 and 120 grams of pyridoxine?

I put 0.9545, i think the correct answer is 0.3108

I dont understand where I went wrong

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The solution provides step by step method for the calculation of probability using the Z score. Formula for the calculation and Interpretations of the results are also included.

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Probability
The amount of pyridoxine (in grams) in a multiple vitamin is normally distributed with µ = 110 grams and σ = 25 grams. ...

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