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 u aditional expository method. These students obtained a mean score of 280 with a standard deviation of 50 on a standardized test. Assuming a bell-shaped distribution, where would approximately 68% of the students score? A. below 230 or above 330 OB. below 180 or above 380 OC. between 180 and 380 OD. between 230 and 330
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 u aditional expository method. These students obtained a mean score of 280 with a standard deviation of 50 on a standardized test. Assuming a bell-shaped distribution, where would approximately 68% of the students score? A. below 230 or above 330 OB. below 180 or above 380 OC. between 180 and 380 OD. between 230 and 330
MATLAB: An Introduction with Applications
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Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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![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 t
traditional expository method. These students obtained a mean score of 280 with a standard deviation of 50 on a standardized test. Assuming a bell-shaped distribution, where would approximately 68% of the students score?
OA. below 230 or above 330
OB. below 180 or above 380
OC. between 180 and 380
OD. between 230 and 330](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F157e66f5-e794-4af2-988e-1885b818a80a%2F0bf24c6e-e646-4104-bd5d-ef29ad927e7b%2Fogohxl_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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 t
traditional expository method. These students obtained a mean score of 280 with a standard deviation of 50 on a standardized test. Assuming a bell-shaped distribution, where would approximately 68% of the students score?
OA. below 230 or above 330
OB. below 180 or above 380
OC. between 180 and 380
OD. between 230 and 330
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