There are30 student in a class and 18 have got atleast 1 pet what is the fraction of the class that have a pet ?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

Match the vocabulary to the proper definition. in probability, two events in which 1. conditional probability the outcome of one event is independent of the outcome of a second event. 2. dependent events in probability, two events in which the outcome of one event is dependent on the outcome of a second event. the probability of an event in which the outcome of the event is conditional on the outcome of one or more different events. 3. independent events

If the diagram polygon abcd is a reflection across ef to make polygon a'b'c'd'.