Complete question is;
Choose the three formulas that can be used to describe complementary events. Select the three formulas that can be used to describe complementary events.
A. P(E') = 1 - P(E)
B. P(E) - P(E') = 1
C. P(E) + P(E') = 1
D. P(E) = 1/P(E')
E. P(E) = 1 - P(E')
F. P(E)/P(E') = 1
G. P(E') = 1/P(E)
Answer:
Options A, C & E
Step-by-step explanation:
For the probability of an event E which is denoted by: P(E).
In complementary events, the complement of E is denoted by: P(E').
Now, the complement means the outcome that Event E does not occur.
This means that the sample space is 1.
Thus;
P(E) + P(E') = 1
It can be rewritten as;
P(E') = 1 - P(E)
It can also be written as;
P(E) = 1 - P(E')
The correct options are; A, C & E
