a telemarketer calls people and tries to sell them a subscription to a daily newspaper. on 18% of her calls, there is no answer or the line is busy. she sells subscriptions to 10% of the remaining calls. for what proportion of calls does she make a sale?
Added by Ashley M.
Step 1
- Proportion of calls where there is an answer and no sale: 72% x 90% = 0.72 x 0.90 = 0.648 - Proportion of calls where there is an answer and a sale: 72% x 10% = 0.72 x 0.10 = 0.072 Show more…
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