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Question: the cholesterol content of large chicken eggs is normal distributed...

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The cholesterol content of large chicken eggs is normal distributed with a mean of  200 mg and a standard deviation of 15 mg.  In 67% of the eggs, the cholesterol content is less than a certain 'c' value.  Find the value of 'c'.

 

ATP Maths results follow a standard normal distribution.  If the mean score is 85 with a standard deviation of 4.8, and you scored 79, the z-score would be:

need working out thanks

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