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 ttraditional 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 330OB. below 180 or above 380OC. between 180 and 380OD. between 230 and 330

Let X be the random variable that is the score of the student.Given that,

Answered: study was designed to investigate the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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