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The average of 10 observations is 21. A new observation is included and the average of these 11 numbers is 1 less than the prevoius average. The 11th observation is____
Q:
The average of 10 observations is 21. A new observation is included and the average of these 11 numbers is 1 less than the prevoius average. The 11th observation is____
- 111false
- 210true
- 321false
- 412false
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