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प्रश्न
The mean of the observations 1, 3, 5, 7, 9, ..., 99 is ________.
रिक्त स्थान भरें
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उत्तर
The mean of the observations 1, 3, 5, 7, 9, ..., 99 is 50.
Explanation:
The observations are equally spaced, so their mean is the average of the first and last terms: `(1 + 99)/2 = 50`.
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