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

###### Question details

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