Question

17. 19. 20. 22. 24. 24. 28. 30. 30. 36
Find the mean time taken by the students to complete the test
Find the new mean, if another student who took 14 minutes is also included
4. The enrolment of a school during seven consecutive years was as follows:
1580.2020. 2580, 3200, 3550. 3710.4010
Find the mean enrolment of the school for this period.
) Find the new mean, if the enrolment of the current year, that is 4.270 is also included
5. In a factory the total number of workers are 25. Out of them, the average monthly salary
of 15 workers is? .8.500 whereas the other 10 workers have an average salary of * 9.800.
Find the monthly average salary of all the 25 workers.
6. The average salary of 19 workers in a factory is 12.000 per month. If the salary of
the manager is 7 42,000 per month, find the average monthly salary paid to all the
employees.
7. The mean of nine observations was found to be 35. Later on, it was discovered that an
observation 81 was misread as 18. Find the correct mean of the observations.
a. The mean of five numbers is 27. If one number is excluded, their mean is 25. Find the
excluded observation.in a factory the total number of workers are 25 out of them the average monthly salary of 15 workers is 8500 where as the other 10 workers after average salary of rupees 9800 find the monthly salary average of all the country workers ​

Answer 1

Answer:

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