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    Hi guys
    I had a few doubts in the biology unit 6 ial paper , would be glad if anyone could clear them out for me

    1) range bars - in every graph question they ask to draw the range bars in your graph . Could anyone explain where they are taking the values for this standard deviation to plot on the graph from?

    2) explanation on the differences in the Mann Whitney u test, t test and spearmans test , required for question 3 of the paper

    Thanks in advance !
 
 
 
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