The scores on a test are normally distributed with a mean of 140 and a standard deviation of 28 . What is the score that is 3 standard deviations above the mean?

Step 1 ：The scores on a test are normally distributed with a mean of 140 and a standard deviation of 28.

Step 2 ：We need to find the score that is 3 standard deviations above the mean.

Step 3 ：In a normal distribution, each standard deviation represents a certain percentage of the data points.

Step 4 ：So, 3 standard deviations above the mean would be mean + 3*standard deviation.

Step 5 ：Substitute the given values into the formula: \(140 + 3*28\).

Step 6 ：Simplify the expression to get the final answer.

Step 7 ：\(\boxed{224}\) is the score that is 3 standard deviations above the mean.