A Study Was Designed to Investigate the Effects of Two

question 101

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 430 with a standard deviation of 20
On a standardized test. Assuming a non-mound-shaped distribution, what percentage of the
Students scored over 490?

• A)approximately 2.5%
• B)at most 11%
• C)at least 89%
• D)at most 5.5%

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Definitions:

Aerobic Exercise

Any form of physical exercise that relies on the oxygen process, typically involving moderate intensity activities sustained over long periods.

External Locus

The belief that one's outcomes in life are determined by external forces or events, rather than by one's own efforts.

Type B

Describes a personality typology characterized by a relaxed, patient, and easy-going nature.

Type A

Refers to a personality type characterized by high levels of competitiveness, self-imposed stress, and a sense of urgency, often linked with stress-related health issues.