Question
The meaning of 12 observations is 15. One more
observation is included, and the new mean becomes 17. The 13th observation is.Solution
The mean of 12 observations=15 Total =15×12=180 After including the new observations =12+1=13 New mean =17 Then total=17×13=221 13th observations =221-180=41.
Which of the following words cannot be formed from the letters of the word?
DILEMMA
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