the mean monthly sealay of 10 memberss group is 1600rs one more member is whose salary is 2150rs has joined the group the mean salary of 11 members group will be
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1650 rs.
If you take 1600 * 10, you can find what the total of all of the salaries were. you know this because in order to find the mean you take the total divided by number of members. you can now do this backwards to find the total. Once you have the total, add 2150 and then divide by 11.
If you take 1600 * 10, you can find what the total of all of the salaries were. you know this because in order to find the mean you take the total divided by number of members. you can now do this backwards to find the total. Once you have the total, add 2150 and then divide by 11.
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