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You observe 300 cases of COVID-19 in a pocket of the city but you expected to see 220 cases of COVID-19 what is the corresponding

You observe 300 cases of COVID-19 in a pocket of the city but you expected to see 220 cases of COVID-19 what is the corresponding chi-square value? Show your work

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If you observe 300 cases of COVID-19 in a pocket of the city, but you expected to see 220 cases of COVID, what is the corresponding chi-square value? Show your work

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