- In a sixth form college each student in Year 12 and Year 13 is either left-handed (L) or right-handed (R).
The partially completed tree diagram, where \(p\) is a probability, gives information about these students.
\includegraphics[max width=\textwidth, alt={}, center]{86446ce3-496a-4f02-9566-9b207bac9efa-10_960_981_477_543}
- Complete the tree diagram, in terms of \(p\) where necessary.
The probability that a student is left-handed is 0.11
- Find the value of \(p\)
- Find the probability that a student selected at random is in Year 12 and left-handed.
Given that a student is right-handed,
- find the probability that the student is in Year 12