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
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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
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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