It is unlikely that questions like this (calculation of Z-score) will appear on the exam, but even if it appears it is simple that 1.2X1+1.4X2+3.3X3+0.6X4+X5…it is simple…but it is highly unlikely, but you can’t predict Alex Watt…..
No we do not need to know the formula..if the formula is required then it will be given..:-)
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