Math, asked by ravleenkaur61, 1 year ago

the mean of 13 observation of a data is 19. if two observation are mistaken to be 14 each instead of 11 and 17, then find the correct mean​

Answers

Answered by sms83
0

247

Step-by-step explanation:

total mean 13 ×19 =247

(the original should be added and mistaken should be subtracted )

so; 247- 11-17 +14 +14

= 247-28+28

=247

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