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If the mean deviation of the numbers 1,"...

If the mean deviation of the numbers `1,""1""+""d ,""1""+""2d ,""..."",""1""+""100 d` from their mean is 255, then the d is equal to (1) 10.0 (2) 20.0 (3) 10.1 (4) 20.2

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To solve the problem, we need to find the value of \( d \) given that the mean deviation of the numbers \( 1, 1+d, 1+2d, \ldots, 1+100d \) from their mean is 255. ### Step-by-Step Solution: 1. **Identify the Sequence**: The numbers form an arithmetic sequence where: - First term \( a = 1 \) - Common difference \( d \) ...
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