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The mean of 10 observations is 15. If ...

The mean of 10 observations is 15. If one observation 15 is added, then the new mean is
(a) 16                               
(b) 11
(c) 10                               
(d) 15

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RD SHARMA ENGLISH-DATA HANDLING 2-All Questions
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  10. If the mean of  and 7 is 7, then 6                            ...

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  14. The mode of the unimodular data  and  is 10. The value of ...

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

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  16. There are 7 observations in the data and their mean is 11. If each o...

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  17. The mean of 10 observations is 15. If one observation 15 is added, t...

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  18. If the median of 10, 12, x, 6, 18 is 10, then which of the followin...

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  20. For a frequency distribution, mean, median and mode are connected by t...

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