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  1. Re: Issue for review. Please could somebody review it?

    Good essay. I would just add the role that scandals play in manipulating the public opinion and how fast this can be delivered to the masses by various mass media outlets. What are the costs of such...
  2. Thread: Issue Essay

    by Tristar
    Replies
    1
    Views
    533

    Re: Issue Essay

    I think you could make a jump from a good essay to a great one by considering the following points:

    1) What are these positive and negative actions? Do we have a clearly defined boundary between...
  3. Re: Please grade Issue Task essay and provide your valuable feedback

    Here are some tips for your improvement:

    1) Try to make a simple analysis of the given situation. For instance, you could ask yourself the following questions: What does it look like when...
  4. Re: Posting my first Issue essay. kindly post your feedback.

    Hi there!

    I would rate your Essay on 3 Principles: Grammar, Argumentation, and Integrity. The grades of the sub-parts is as follows: Grammar (5/10), Argumentation (3/10) and Integrity (2/10). For...
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    1,427

    Re: ETS quant question rationale

    The right answer should NOT contain 1, as both "x and y are greater than 1". This is given as a pre-condition in this particular question. Hope this helps.

    Tristar
  6. Thread: Revolving Door

    by Tristar
    Replies
    2
    Views
    10,013

    Re: Revolving Door

    Yes, the correct answer is 720 people.
  7. Replies
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    7,940

    Re: More Probability questions

    Ans to q2:
    Total Number of Cases=(2,6); (6,2); (3,5); (5,3) and (4,4) i.e. 5. Now, number five is present in two of these cases (Favorable Number of Cases). Thus, the required probability=2/5....
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    2
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    7,940

    Re: More Probability questions

    Ans to q1:
    4 adresses can be arranged in 4! ways i.e. 4!=4*3*2*1=24 ways (Total Number of Cases). One letter could be put into its correct envelope in 4 ways (the first letter goes into its correct...
  9. Thread: Probability

    by Tristar
    Replies
    2
    Views
    8,980

    Re: Probability

    Answer: 4 people can be selected out of 8 people in 8C4 ways = 70 (total number of cases). Assuming that Andrew is among the 4 volunteers selected, we have 3 remaining spots for 6 candidates (as...
  10. Thread: Revolving Door

    by Tristar
    Replies
    2
    Views
    10,013

    Revolving Door

    Hi there!

    Here below is a maths test question for 15-year olds. Just give it a try:

    A revolving door has three areas within a circular-shaped space. In one minute the door goes around 4 times....
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    11,211

    Re: 12 Permutation n Combinations problems

    Q1.There are 9 candidates being interviewed for a position. Interviews can only be conducted on the days Monday to Wednesday, two interviews per day. The first interview being conducted each day will...
  12. Thread: probability

    by Tristar
    Replies
    8
    Views
    3,358

    Re: probability

    I will try to explain this concept in an easy way.

    When you are given more than one spot where you need to select objects from a wider population (in our case the population of marbles), first...
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    26,603

    Re: Really hard probability question - please help!

    Here's what I think on this problem:

    Since the net change out of 100 actions (weeks) is 40 people in the room, the given probabilities need to be adjusted by a factor of (100/104) = 0.961538...
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    10,966

    Re: Difficult Permutation Problem

    In how many different ways can 12 people be seated at two tables with one seating 7 and the other seating 5?

    Ans: The first sit can be taken by anyone of 12 people, the next sit by the remaining...
  15. Thread: permutation

    by Tristar
    Replies
    2
    Views
    8,789

    Re: permutation

    There are 5 balls of different colours and 5 boxes of colours the same as those of the balls. Number of ways in which the balls, one in each box can be placed such that a ball does not go to a box of...
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