3 years ago

Which of the following values could represent the probabilities of complementary events and 28% and 82% and 10% and 80%

Mathematics

2 answers:

MissTica3 years ago

8 0

Answer:

2/5 and 3/5

Step-by-step explanation:

Complementary events have probabilities that sum to 100%, or 1.

28+82 = 110; this is not 100.

10+80 = 90; this is not 100.

1/7+2/7 = 3/7; this is not 1.

2/5+3/5 = 1; this is correct.

Harman [31]3 years ago

6 0

The answer is 2/5 and 3/5 as they both add up to 1.00 or 100%

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