For Questions 21 - 22, use the following information. Use 4 decimals in your calculations.

As part of an IT survey, both staff and managers were asked to indicate what business and technical skills are critical to their jobs. In total, 12 skills were included in the survey. One of the 12 skills was "Analyzing Data". The following table reports findings about that skill:

	Professional Position
Analyzing Data	Staff	Management	Total
Critical	125	250	375
Not critical	45	68	113
Total	170	318	488

1. What is the probability a randomly selected person is a manager and believes Analyzing Data is a critical skill?
   1. 0.51
   2. 0.79
   3. 0.35
   4. 0.87

1. Given that a person is a staff member, what is the probability that he/she believes Analyzing Data is a critical skill?
   1. 0.29
   2. 0.74
   3. 0.50
   4. 0.77

1. How many outcomes are possible in an experiment consisting of flipping 4 coins, rolling 3 six-sided dice and choosing 1 lower case letter?
   1. 12
   2. 220
   3. 89,856
   4. 35,219

1. The respondents were asked to consider the 15 skills included in the study, and rank (as 1, 2, and 3) their top 3 choices. How many different ways are there that a person could make his/her selection?
   1. 45
   2. 455
   3. 1320
   4. 2730