Page 160 - TB_6B

Objective: Learn how to find the probability of an event.

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Discuss which event has a higher chance of winning.

Write all the possible outcomes of event A and event B.

Outcomes of event A (1st, 2nd) In event A, the same

(1, 1), (1, 2), (1, 3), (1, 4), (1, 5), (2, 1), (2, 2), numbers can be pulled out,
(2, 3), (2, 4), (2, 5), (3, 1), (3, 2), (3, 3), (3, 4), such as (1, 1). Keep this in
(3, 5), (4, 1), (4, 2), (4, 3), (4, 4), (4, 5), (5, 1), mind when looking for the
(5, 2), (5, 3), (5, 4), (5, 5)
possible outcomes.

Outcomes of event B (1st, 2nd)
(1, 2), (1, 3)

Find the probability of winning in each event.

P(event A)= number of winning cases = 1
total number of cases 25

P(event B) = number of winning cases = 1
total number of cases 25

Which event should Ryan choose?

32. Independent and Dependent Events 149