The mean of 5 number is 27. If one number is excluded their mean is 25 find the excluded number
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Step-by-step explanation:
Find the sum of 5 numbers:
Mean of 5 numbers = 27
Sum of 5 numbers = 27 x 5 = 135
Find the sum of the 4 numbers:
Mean of the 4 numbers = 25
Sum of the 4 numbers = 4 x 25 = 100
Find the excluded observation:
135 - 100 = 35
Answer: The excluded observation is 35
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