One number, k , is selected at random from a set of 11

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Source: Magoosh

One number, \(k\), is selected at random from a set of 11 consecutive even integers. What is the probability that \(k = 10\)?

1) The average (arithmetic mean) of the set is zero.
2) The probability that \(k = 10\) is the same as the probability that \(k = -10\).

The OA is A
Source: — Data Sufficiency |