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    I'm struggling to get through the exercises in s1 since I don't understand the logic behind them, solution bank doesn't explain how the answers have been obtained clearly enough either.

    I don't understand exercise 9b) question 4c, question 5a. I would really appreciate if someone could explain how to work these out as I could then apply this to questions of a similar type. Thank you Attachment 729144
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    if you could post the questions you would get more answers; we do not all have the textbook in front of us.
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    (Original post by the bear)
    if you could post the questions you would get more answers; we do not all have the textbook in front of us.
    Hi I've just attached it to the post
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    (Original post by Student_17362929)
    Hi I've just attached it to the post
    it's good.

    so for 4 c) notice that there is a symmetric interval. the probability that Z is between 0 and a is half of 0.5820

    so the probability that Z < a is half of 0.5820 plus 0.5
 
 
 
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