8.17 (i) A batch of 15 integrated-circuit chips contains 4 of an “irregular” type. If from this batch 2 chips are selected at random, and without replacement, ﬁnd the probability that: (a) both are “irregular”; (b) none is “irregular”; (c) only one of the two is “irregular.” (ii) If the random variable in problem (i) above was mistakenly taken to be a bi- nomial random variable (which it is not), recalculate the three probabilities and compare the corresponding results.
Solution ID:10137805 | Question answered on 16-Oct-2016
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