The mean of 20 numbers is …
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The mean of 20 numbers is 20. If 5 is added to each of the first ten numbers, what will be new mean of the new set of 20 numbers?
Posted by Prince Bansal 3 years, 7 months ago
- 5 answers
Hitesh Singh 3 years, 7 months ago
Mean of 20 number is given 20 from there we can find sum of observation by multiplying total number and mean ,we get 400 and then 5 is added 10times which is equal to 450 after that for finding new Mean : sum of all observations ÷Total number=450÷20=22.5
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Ranjeet Kumar Pandit?? 3 years, 7 months ago
0Thank You