Math, asked by saniya0107, 1 year ago

the mean of 17 observations is 30 .three observations 20,30 and 40 are detected and one observation 90 is included.then find mean of the final observation

Answers

Answered by snehil4503

no of observations: 17
mean of observation: 30
sum of observations: 410
no of observations(new):18
sum of observations(new):410+90=500
•°•Mean of the new observations: 500 dividedby 18: 27.777..
I think this may be the answeee

saniya0107: thanks for trying but this question was an mcq and your answer is not in the options

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