Math home work questions

My teacher solved some questions in class but I don't understand them. I am just wondering if I am allowed to post these questions if experts can explain them.
Tommy AndersonAsked:
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Thibault St john Cholmondeley-ffeatherstonehaugh the 2ndCommented:
You are if you show how you've made an attempt at them and explain where you are stuck.
Tommy AndersonAuthor Commented:
I tried to figure it out but accept the first line total accident probability, I don't understand the rest of the solution.

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aburrCommented:
consider a
What is the probability that the person has an accident?   Write the answer
What is the probability that the person drove less than 10,000?    Write the answer
send answers and I will go to the next step

If I understand you work correctly you gave an answer to part a of 0.2. But that is obviously wrong because the probability of just having an accident by itself is greater than that.
Helpful question: If the probability of A happening is 0.3 AND the probability of B happening is 0.4
What is the probability of either A OR B happening?     Write the equation
What is the probability of A AND B happening?     Write the equation

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Tommy AndersonAuthor Commented:
What is the probability that the person has an accident? 0.50 (According to the data)
What is the probability that the person drove less than 10,000? 0.15  (According to the data)
aburrCommented:
So how can the probability of doing either be less than the probability of having an accident?
I think you are probably applying the wrong equation, How would you do the other two simplified questions?
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Math / Science

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