Q3. A box contains six orange balls, four green balls, five yellow balls: 1- if a ball is drawn at random from a box, determine the probability of that ball is not orange. 2- if three balls are drawn successively from the box, determine the probability of that balls are drawn in the order orange, green, yellow if each ball is replaced. 3- find the number of permutations of different coloured balls. if the bollo diffe

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