A study was designed to investigate the effects of two veriables - (1) a students level of mathematical anxiety and (2) teaching method - on a students achievement in a mathematics course. Students who had low level of mathematical anxiety were taught using the traditional expository method. these students obtained a mean score of 290 with a standard deviation of 50 on a standardized test.  musing Chebyshevs Theroem, what percentage of the students scored between 190 and 390? a) the "k" value is ____ (blank) b) the percentage of the students who scored between 190 and 390 is ____ (blank)

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.