Mean of 10 values is 32.6. If another values is included the mean becomes 31. The included value is

16

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14

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15

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19

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Solution

The correct option is C $15$
Included value $= 31 \times 11 - 32.6 \times 10 = 15$

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Mean of 10 values is 32.6. If another values is included the mean becomes 31. The included value is

The correct option is C 15Included value =31×11−32.6×10=15

The correct option is C $15$
Included value $= 31 \times 11 - 32.6 \times 10 = 15$