Ch- Data handling
The mean of five observation is 17.If the mean of first three observation is 15 and rest three is 18, then find the third observation.

plz recheck your question's data
I meant If the mean of first three observations is 15 and last three is 18 then find the third observation..


The Brainliest Answer!
Mean of five observation =17
sum of the five observation = 17*5 = 85
mean of first three observation = 15
sum of the first three observation = 15*3 = 45
mean of last three observation = 18
sum of the last three observation  = 18*3 =54

since,the third observation occurs twice.
the third observation = 45+54-85
i think this will help u!!!!!!!!

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