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Examen
IB SEHS Topic 6.1 Statistical Analysis
IB SEHS Topic 6.1 Statistical Analysis 
standard deviation ️spread of scores around the mean or average 
error bars ️graphical representation of the variability of the data 
coefficient of variation ️The ratio of the standard deviation to the mean, expressed as a percentage; 
another useful measure of variation 
what does a t-test determine? ️Whether the difference in means is due to the exercise (treatment) or 
is simply due to chance 
statistically significant results ️p ≤ ...