Mean of 50 observations is 60. the 12th observation is 75. if this is replaced by 25, then what is
the new mean?
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Answered by
1
Answer:
59
Step-by-step explanation:
Mean = 60
No. of Observations = 50
Sum of Observations = 50 × 60 = 3000
New Sum of Observations = 3000 - 75 + 25 = 2950
New Mean = 2950 ÷ 50 = 59
Answered by
1
Answer:
open the pic
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