Page 163 - TB_6B
P. 163
Activity 2 Independent Events
If the outcome of the 1st event does not affect the 2nd event, the events are
called independent events.
A and B are independent events.
P(A and B) = P(A) P(B)
Find the probability of rolling an odd number and
getting heads when you roll a die and toss a coin.
Find P(heads) and P(odd). P(heads and odd)
= P(heads) P(odd)
P(heads) = heads = 1
heads, tails 2 1 3
6
P(odd) = 3 =
= 2
6
Then multiply the probabilities. 1
=
4
1 . Find the probability of getting 2 . Find the probability of getting
each set of outcomes when each set of outcomes when
rolling a die and tossing a coin. rolling two dice.
a. P(odd and tails) a. P(2 and 3)
b. P(even and heads) b. P(even and even)
152
If the outcome of the 1st event does not affect the 2nd event, the events are
called independent events.
A and B are independent events.
P(A and B) = P(A) P(B)
Find the probability of rolling an odd number and
getting heads when you roll a die and toss a coin.
Find P(heads) and P(odd). P(heads and odd)
= P(heads) P(odd)
P(heads) = heads = 1
heads, tails 2 1 3
6
P(odd) = 3 =
= 2
6
Then multiply the probabilities. 1
=
4
1 . Find the probability of getting 2 . Find the probability of getting
each set of outcomes when each set of outcomes when
rolling a die and tossing a coin. rolling two dice.
a. P(odd and tails) a. P(2 and 3)
b. P(even and heads) b. P(even and even)
152