From the values that we have the magnitude of the value of the stock A would be given as 4.15. Option A is correct.
What is the magnitude of a stock?
This is the term that is sued to refer to how far the run of a particular stock is in terms of its price. In order to get the magnitude, we would have to find the absolute value of the stock A as we have it here.
Remember the absolute value would have to change the value to be positive if it was negative.
Hence we would have
I-4.15I = 4.15
Hence the solution is 4.15
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