Ah, that formula. They made us chant it like a mantra in pre-med—p² + 2pq + q² = 1. But you know, it only works if your population is like a perfectly still lake, no one coming or going, no preferences. Life is never that sariyagi.
In my shop, I stocked those fancy biscuits assuming everyone in town liked them, based on last year's register. But then the new factory came, new people, new tastes—total loss. The formula forgot to account for change.
So if you must use it, swalpa, remember it assumes no life is happening. Like assuming my customers never saw that new supermarket.
#exams#study
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