Mathematics, 26.02.2021 14:00 aylineorozco836

there are only red counters, blue counters and purple counters in a bag. The ratio of the number of red counters to the number of blue counters is 3:17 Sam takes a counter from the bag. The probability that the counter is purple is 0.2, work out the probability that sam takes a red counter.

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there are only red counters, blue counters and purple counters in a bag. The ratio of the number of...

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