Multiple Choice
A study was designed to investigate the effects of two variables - (1) a student's level of mathematical anxiety and (2) teaching method - on a student's 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 350 with a standard deviation of 40 on a standardized test. Assuming a mound-shaped and symmetric distribution, in what range would approximately 99.7% of the students score?
A) between 230 and 470
B) below 470
C) above 470
D) below 230 and above 470
Correct Answer:
Verified
Correct Answer:
Verified
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