Hi can anyone help me on this question I keep getting it wrong. Thank you!

When you are done, click here to see a summary of your score Question with last attempt is displayed for your review only Final exam scores in a Math class with large number of students have mean 155 and standard deviation 4.9. Provided the scores of this Final exam have a nearly symmetric/bell-curv distribution, what percent of students score below 140.3 OR above 164.8 1.9545 Message instructor about this