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A jar contains 5 red marbles, numbered 1 to 5, and 11 blue marbles numbered 1 to 11.
a) A marble is chosen at random. If you're
4 answers
asked by
Jesus
2,620 views
A contest sets out 20 unmarked envelopes. Two of those envelopes include a letter indicating a prize. The others letters are
1 answer
asked by
Nick
258 views