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secondary 4 | E Maths
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Hi I really don’t understand the last qn (b)‘s answer: how did 0.2 come up in the answer it really bummed me cuz it came out of no where to me someone pls enlighten me thanks!!
this is also known as the rule of complement for probability.
where P(A) + P(A’) =1
so in this case, treat A as her using the car, and A’ will be her not using the car