The mean of 11 results is 50. If the mean of the first six results is 49 and that of the last six is 52, then the sixth result is:
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Q:
The mean of 11 results is 50. If the mean of the first six results is 49 and that of the last six is 52, then the sixth result is:
- 154false
- 256true
- 355false
- 453false
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