plz answer these also
The mean of 20 items was 50. later on it was discoverd that the two items are misread as 92 and 8 instead of 192 and 88 find the correct mean
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Answers
Answered by
1
Let the sum of observations be x
Mean= sum of observations/no. of observations
50=x/20
x=1000
According to the problem,
Sum of observations=(1000-92-8)+192+88
=900+280
= 1180
New mean =1180/20
= 59 (Ans)
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Answered by
0
Answer:
59
Step-by-step explanation:
50=Σx/20
1000=Σx
new mean=1000-92-8+192+88/20=59
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