(Answered) Normal distribution of scores

Engineering

Question 1: Weights of chip packages are normally distributed with mean 12.4 oz and standard deviation 0.15 oz. If the company delivers 1,000 bags of chips, how many would be expected to weigh between 12.7 and 12.85 oz?

Question 2: If a normal distribution of scores has a mean of 100 and a standard deviation of 10, what percentage of scores would lie below 3 standard deviations?

Question 3: If a distribution has a mean of 35 and a standard deviation of 5, what value would be -2.5 standard deviations from the mean?

Question 4: The cholesterol content of large chicken eggs is normally distributed with a mean of 200 mg and a standard deviation of 15 mg. What proportion of these eggs have cholesterol content above 205 mg?

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