Question 5.164

58. Social Networking Apps. The Nielsen Apps Playbook was a survey taken in 2010 of 3691 males and females on the use of social networking apps9 (mobile software applications). The results are shown in the following table:

Has downloaded a social networking
app in the last 30 days
Yes No
Male 884 841
Female 1220 746

Find the probability that a randomly chosen person has the following characteristics:

  1. Is female
  2. Has downloaded a social networking app in the last 30 days
  3. Is a female who has downloaded a social networking app in the last 30 days
  4. Is a female or has downloaded a social networking app in the last 30 days
  5. Is not a female
  6. Has not downloaded a social networking app in the last 30 days