90 pupils were asked whether they owned a laptop or a tablet device. 52 said they owned a laptop. 45 said they owned a tablet. 23 said they owned both. Find the probability that a pupil chosen at ...
In order to use Venn diagrams when talking about events, we must first understand the term 'mutually exclusive'. Imagine there are two events: event A and event B. If they both cannot happen at the ...
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