Multiple Choice
A study was designed to investigate the effects of two variables - (1) a studentʹs level of mathematical anxiety and (2) teaching method - on a studentʹs achievement in a mathematics
Course. Students who had a low level of mathematical anxiety were taught using the traditional
Expository method. These students obtained a mean score of 420 with a standard deviation of 20
On a standardized test. Assuming a mound-shaped and symmetric distribution, what percentage
Of scores exceeded 380?
A) approximately 84%
B) approximately 100%
C) approximately 97.5%
D) approximately 95%
Correct Answer:
Verified
Correct Answer:
Verified
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