Question

A company is about to launch a new cell phone model. In the past, 40% of its cell phones have launched successfully. Before any cell phone is launched, the company conducts market research and receives a report predicting favorable or unfavorable sales. In the past, 70% of successful cell phones and 20% of unsuccessful cell phones received favorable​

Answer 1

In the past, 70% of successful cell phones and 20% of unsuccessful cell phones received favorable reports. So, Number of successfully launched+favorable cell phones is successful are: 40% of 70% of the total cell phones.