Mathematics, 13.07.2019 06:50 bellaforlife9

There are 9 counters in a bag. 7 of the counters are green. 2 of the counters are blue. ria takes a random two counters from the bag. work out the probability that ria takes one counter of each colour. you must show your working.

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There are 9 counters in a bag. 7 of the counters are green. 2 of the counters are blue. ria takes a...