Data Handling
Grade: 7,8
1. Find the mean of 53, 64, 45, 87,32 ?
2. Find the mean of first 6 Natural numbers ?
3. Find the mean of first 10 odd natural numbers ?
4. Find the mean of all factors of 10 ?
5. Find the mean of (x+3), (x+5), (x+7), (x+9), (x+11)
6. If the heights of 5 persons are 140cm, 150cm, 152cm, 158 cm, 161cm respectively, find the mean height ?
7. The mean of 75 numbers is 35. If each number is multiplied by 4, find the new mean?
8. The mean of 5 numbers is 27. If one more number is included, then the mean is 25. Find the included number ?
9. The mean of 5 numbers is 18. If one number is excluded, their mean is 16. Find the excluded number ?
10. The mean of 10 numbers is 20. If 5 is subtracted from every number, what will be the new mean ?
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