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    Is this expressed as a percentage or as a ratio?

    Thank you
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    in what context?
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    To measure the risk of investment
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    is the question stated to find the probability"measure"?
    Im pretty sure its fine for both because percentage is a ratio, in itself, but I think if you were given the details of the question in terms of ratios, to just stick to ratios. i.e. instead of 0.45 = 45% if you understand what I mean?!
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    The question is given in terms of money values i.e. expected profit and we are asked to calculate the coefficient of variation for each of the 5 investments
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    percentage!
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    thank you
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    its best for comparison between each profit of investment, tidy !
 
 
 
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