Exam P Practice Question 928
Study guide: Exam P-1
A keyboard has 6 function keys, 4 arrow keys, and 2 control keys (12 keys in total). A quality control specialist randomly selects 3 keys for testing.
Calculate the expected number of function keys selected.
- A) 0.5
- B) 1.0
- C) 1.5
- D) 2.0
- E) 2.5
Answer this question and see the worked solution