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Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 450 with a standard deviation of 30 on a standardized test. The test scores follow a normal distribution.

a. What percentage of scores would you expect to be greater than 420? %

b. What percentage of scores would you expect to be less than 510? %

c. What percentage of scores would you expect to be between 420 and 510? %

Students who had a low level of mathematical anxiety were taught using the traditional expository method. These students obtained a mean score of 450 with a standard deviation of 30 on a standardized test. The test scores follow a normal distribution. a. What percentage of scores would you expect to be greater than 420? [hm b. What percentage of scores would you expect to be less than 510? [c]% c. What percentage of scores would you expect to be between 420 and 510? [111%