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Mathematics, 09.11.2019 23:31 meichea

Abag contains n counters.
one counter is blue the rest is red.
two counters are taken at random from the bag.
a) express in terms of n, the probability that a counter of each is taken.
give your answer as a fraction in its simplest form.
b) the probability that a counter if each colour is taken is 0.125.
how many red counters are in the bag?

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Abag contains n counters.
one counter is blue the rest is red.
two counters are taken at...
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