Nanette must pass through three doors as she walks from her company's foyer to her office. Each of these doors may be locked or unlocked.
Let B be the event that exactly two doors are locked. List the outcomes of B
Designate "locked" and U" designate "unlocked".]
A) {LLU, LUL, ULL}
B) {LLU, LUL, ULL, LUU, ULU, UUL}
C) {LLL, LLU, LUL, LUU, ULL, ULU, UUL, UUU}
D) None of these.

Question

Quizplus · Accepted Answer

The event B specifies that exactly two doors are locked. The outcomes that fit this description are {LLU, LUL, ULL}, where each outcome represents a different arrangement of two locked doors and one unlocked door.

Nanette Must Pass Through Three Doors as She Walks from Her