A Study Was Designed to Investigate the Effects of Two

question 117

Multiple Choice

A study was designed to investigate the effects of two variables - (1) a studentʹs level of mathematical anxietyand (2) teaching method - on a studentʹs achievement in a mathematics course. Students who had a low levelof mathematical anxiety were taught using the traditional expository method. These students obtained a meanscore of 460 with a standard deviation of 50 on a standardized test. Assuming a bell-shaped distribution, whatpercentage of scores exceeded 360?

• A) approximately 97.5%
• B) approximately 95%
• C) approximately 2.5%
• D) approximately 84%

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