the mean of 5 observation is 19 . Find the fifth observation, if the four observations are 16 , 18, 15 and 12
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Answer:
The 5th observation is 34.
Step-by-step explanation:
Mean = Sum of the observations /
No. of observations
Let, the fifth no. be x
•ATQ, 16+18+12+15+x / 5 = 19
=> 61+x/5 = 19
=> x = (19×5)-61
=> x = 95-61
=> x = 34
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