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Thank youuuuuuu
I don't understand for qs 4a, the mean is 255.5 so should divide by n for calculating variance? 😢
we just use the formula of unbiased estimated mean and variance.
Thank youuuuuuu
I don't understand for qs 4a, the mean is 255.5 so should divide by n for calculating variance? 😢
we just use the formula of unbiased estimated mean and variance.