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  1. B

    VCE Maths questions help

    The probability that Ari eats ice cream is 0.6 The probability that Barry eats ice cream is 0.8 The probability that Chris eats ice cream is 0.7 What is the probability that Chris Sticks to the diet? Does this question imply that only chris to the diet and ari and barry don't stick to the diet...
  2. B

    VCE Maths questions help

    I have a maths exam this monday 8:45 am How do I study effectively from 6:00/7:00 pm today until 5:00pm Sunday night?
  3. B

    VCE Maths questions help

    How much interest is paid on a monthly balance of $665 with a simple interest rate of 7.2% p.a? 7.2/12 = 0.6% per month is it (665*0.6%*1)/(100) or is it (665*0.6%*1/10)/(100) Thanks
  4. B

    VCE Maths questions help

    is 40 - - 7x + 7 the same as 40 - (-7x+7)?
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    VCE Maths questions help

    Can you please stop the insults
  6. B

    VCE Maths questions help

    To find the area of this shape, do you need to minus the line of the semicircle that intersects with the rectangle?
  7. B

    VCE Maths questions help

    I've gone through this but still feel confused, that's why i am asking How do you know if the equilibrium position is y = or x =
  8. B

    VCE Maths questions help

    -y≥ - x + 2 y≤1x - 2 Are these the same?
  9. B

    VCE Maths questions help

    Thanks
  10. B

    VCE Maths questions help

    The answer said 24/38. Do you now how it's worked out?
  11. B

    VCE Maths questions help

    If you use the second formula for P(A and B), is that wrong? Thanks
  12. B

    VCE Maths questions help

    No problem
  13. B

    VCE Maths questions help

    There are two friends, peter and sally. Their respective probabilities of being alive in 40 years time are 0.7 and 0.8. What is the probability that Sally is alive in 40 years time, given that one of them is alive then?
  14. B

    VCE Maths questions help

    Is "nor" the same as "and" in probability?
  15. B

    VCE Maths questions help

    P(a u b) = P(a) + P(b) P(a u b) = P(a) + P(b) - P(a and b) which formula is correct? I see both formulas being used in calculations
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    2018ers Chit-Chat Thread

    Any ideas if this is a good study method?
  17. B

    VCE Maths questions help

    Anyone?
  18. B

    VCE Maths questions help

    Bump Confused with probability
  19. B

    VCE Maths questions help

    The probability that a student studies maths = 2/3 The probability that a student studies german = 3/10 The probability that a student studies maths and does not study german = 7/15 Find pr(a randomly chosen student does not study either maths or german) P(m'u g') = p(m') + p(g') - p(m' and g')...
  20. B

    VCE Maths questions help

    jack attends training 5 days per week If jack runs one day, the probability that he will run again the next day = 4/5 If jack does not run one day, the probability that he will not run the next day = 3/4 Suppose jack runs one day: a. Find pr(jack runs the next day) b. Find pr(jack runs the day...
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