Probability › Events and basic probability › Events, unions and complements

False propositions about events

High school · ●●○○○ 20 pts

Consider the following five propositions. ① Toss a coin twice. Let event AA be "both tosses land heads" and event BB be "both tosses land tails"; then AA and BB are complementary events. ② In proposition ①, AA and BB are mutually exclusive events. ③ Among 10 products, 3 are defective. Three products are selected at random. Let event AA be "at most 2 of the selected products are defective" and event BB be "at least 2 of the selected products are defective"; then AA and BB are mutually exclusive events. ④ If events AA and BB satisfy P(A)+P(B)=1P(A)+P(B)=1, then AA and BB are complementary events. ⑤ If AA and BB are mutually exclusive events, then A‾∪B‾\overline{A}\cup\overline{B} is a certain event. Identify all the false propositions among these five and give their numbers, in increasing order.

Enter the values in any order.

Sign in to save your progress.

mutually exclusive eventscomplementary probabilityclassical probabilityhypergeometric distribution