The probability that one or more friends will be lost is 100%.
To determine what's the probability you lose one or more friends, the following logical-mathematical reasoning must be carried out:
Since there are 6 red candies and there are 7 friends, at least 1 of the friends will not receive their red candy. This is because they do not reach the amount of candies to cover all people, regardless of the way they are distributed.
Therefore, the probability that one or more friends will be lost is 100%.
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