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The mean of marks scored by 100 stude...

The mean of marks scored by 100 students was found to be 40. Later on it was discovered that a score of 53 was misread as 83. Find the correct mean.

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Mean of 50 observations was found to be 80.4. But later on, it was discovered that 96 was misread as 69 at one place. Find the correct mean.

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RD SHARMA ENGLISH-DATA HANDLING 2-All Questions
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  2. The number of children in 10 families of a locality are 2,4,3,4,2,0,3,...

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  3. The mean of marks scored by 100 students was found to be 40. Later ...

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  4. The mean of five numbers is 27. If one number is excluded, their me...

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  5. The mean weight per student in a group of 7 students is 55 kg. The ...

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  6. The mean weight of 8 numbers is 15. If each number is multiplied by...

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  7. The mean of 5 numbers is 18. If one number is excluded, their mean ...

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  8. The mean of 200 items was 50. Later on, it was discovered that the ...

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  9. The mean of five numbers is 27. If one number is excluded, their mea...

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  10. The mean of 75 numbers is 35. If each number is multiplied by 4, fi...

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  11. Organise the following marks in a class assessment, in a tabular fo...

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  12. Given below are the ages of 25 students of class VIII in a school. P...

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  13. Find the mean of the following distribution:          4       ...

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  14. Following table shows the weight of 12 students: Weight (in kgs) 67 70...

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  15. Find the mean of the following distribution:            10       ...

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  16. If the mean of the following distribution is 6, find the value of x....

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  17. Find the value of p  if the mean of the following distribution is 7...

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  18. A die was thrown 20 times and the following scores were recorded: 2,...

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  19. Following figures relate the weekly wages (in Rs.) of 15 workers in...

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  20. The following table shows the weights (in kg) of 15 workers in a fa...

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