A topic you 'somewhat know' is a topic you don't know yet. Be honest about your weak areas.

SZF IOM · Free quiz

SZF IOM — free 5-question quiz

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Question 1 of 5

Easy

A bag contains 5 red balls, 3 blue balls and 2 green balls. If one ball is drawn at random from the bag, what is the probability that it is NOT a red ball?