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Using the Indirect Method to Solve Probability Questions Example In manufacturing process, it is estimated that 1% of the items are defective. If a client places an order for 25 of the items, what is the probability that at least three of them are defective? Expected Value and the Binomial Distribution Example A weighted coin has the likelihood of tossing a head is twice that of tossing a tail. (a) If you toss the coin five times, how many heads would you expect? (b) If you toss the coin 10 times, how many heads would you expect?