2. The pointer of a spinner with 3 congruent sectors is spun once and a tetrahedron labelled 1 to 4 is rolled
R
1
The table shows the possible outcomes.
Tetrahedron
1
2
3
R
R/1
R/3
R/A
R/2
G/2
Spinner G
G/1
G/3
G/4
B/4
В B
B/1
B/2
B/3
Find the probability of cach cvent:
a) the pointer landing on red
P(red) = 12
HINI
Howy
Odlcomes erede
Flow may
outcomes have a 3
b) rolling a 3
P(3) = 1
12
c) red and a 3
P(R/3) =
Compare the probability in parte) with the product of the probabilities in parts a) and b).
What do you notice?​