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The mean of 10 observations is 13. Two more observations are included and the new mean becomes 14. The mean of two new observations is
The median for an odd number of observations is _________ where n is the number of observations. rank on the ascending order of observations b) rank on the ascending order of observations c) Average of and (n/2) rank on the ascending order of observations d) (n/2) rank on the ascending order of observations
For even number of observations of a data distribution, what is the median? rank on the ascending order of observations b) (n/2) rank on the ascending order of observations c) Average of (n/2)th observation and (n/2 + 1)th observation d) Average of and (n/2) rank on the ascending order of observations
The mean of 5 observations is 60, the mean of 10 observations is 30 and the mean of 15 observations is 20. The mean of all the 30 observations is-
How does number of observations influence overfitting? Choose the correct answer(s).Note: Rest all parameters are same
1. In case of fewer observations, it is easy to overfit the data.
2. In case of fewer observations, it is hard to overfit the data.
3. In case of more observations, it is easy to overfit the data.
4. In case of more observations, it is hard to overfit the data.
চারটি সমানুপাতিক রাশির প্রান্তীয় রাশি দুটির গুনফল ২০০। প্রথম রাশিঃ দ্বিতীয় রাশি= ১ঃ২, দ্বিতীয় রাশিঃচতুর্থ রাশি= ১ঃ৪। তৃতীয় রাশিটি কত?
The mean of 12 observations is 15. One more observation is included and the new mean becomes 16. The 13th observation is
The mean of 20 observations is 19. One more observation is included and the new mean becomes 20. The 21st observation is
The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is
The average of 6 observations is 45.5. If one new observation is added to the previous observations, then the new average becomes 47. The new observation is-