Final answer:
The value that is two standard deviations above the mean on a normal distribution curve with a mean of 18 and a standard deviation of 5 is 28.
Step-by-step explanation:
To find the value that is two standard deviations above the mean on a normal distribution curve with a mean of 18 and a standard deviation of 5, you would perform the following calculation:
Mean + (2 × Standard Deviation) = 18 + (2 × 5)
= 18 + 10
= 28.
Therefore, the value that is two standard deviations above the mean is 28.