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The mean of 5 numbers is 4. If 1 is ad...

The mean of 5 numbers is 4. If 1 is added to each number , then the new mean is
(a) 4                                 
(b) 5
(c) 3                                 
(d) 5.5

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RD SHARMA ENGLISH-DATA HANDLING 2-All Questions
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  3. The mean of 5 numbers is 4. If 1 is added to each number , then the ...

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  5. If the mean of  observations is 12 and the sum of the observations...

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  6. The median of the data  is 10                                (b) 11 ...

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  10. If the mode of 22 ,\ 21 ,\ 23 ,\ 24 ,\ 21 ,\ 20 ,\ 23 ,\ 26 ,\ x and 2...

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  11. If the mean of  and 7 is 7, then 6                            ...

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  16. The mean weight of 21 students is 21 kg. If a student weighing 21 kg...

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