Page 37 - Math SL HB Sem 3
P. 37
Watch Out:
we can find the conditional probability from a table without using the tormula
P(A^ B\
P(AIB) =6
Just focus on the part that pertains to the given information.
Watch Out
I
spot that this case is like selecting balls from a bag without replacement as you cannot Ghoose .
tho same student twice.
tConditional probability
the probability for each 'component' together
!rmultiply
Exampl
A school has 668 students of which 340 are boys and 328 girls. The principal of that school
randomly selects 5 students to join a meeting. what is the probability that 5 students selected
consist of both genders?
\. sotution:
-b-
