RE: Day 1 problem of my Math mini-contest 😎

Answer for Day 1 Problem

Short answer: Answer cannot be determined due to insufficient given.
Long answer: There is not enough data on the given to determine the chance of the user changing their profile picture on Day 2, unless it specifies that the user did not change the profile picture on the first day.

If the user changes his profile picture on the first day, there is nothing on the given that says whether it will affect the chance of the user changing their picture on the second day.

If the user has not changed their picture on the first day, then through conditional probability, we say that the chance the user changes his picture on the second day is 20%. However, if the user did change their picture on the first day, then the chance of the user changing the picture on the second day is unknown.

Though nobody answered that the given is simply insufficient, I consider @holovision the winner because they actually pointed out that the chance of the user changing their profile picture on the first day does not affect the chance of the user changing the picture again of the second day.

Winner: @holovision 🏅

1 HIVE has been sent to @holovision's account. 💰

Mentions: @jfang003, @ahmadmanga, @hiveans (and special mention @chrisrice)

Thank you for participating! 😀

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2 Comments
Ecency