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Math Help - Could someone check my problems for me?

  1. #1
    Junior Member Jarod_C's Avatar
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    Iowa
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    Could someone check my problems for me?

    I was wondering if someone could check my problems for me. I'd really appreciate it. I'm new at statistics so if I'm way off don't hesitate to laugh.

    1)Two 6-sided dice are rolled. What is the probability that the sum of the two numbers on the dice will be 5?

    2)A bag contains 2 red marbles, 3 blue marbles, and 7 green marbles. If a marble is randomly selected from the bag, what is the probability that it is blue?

    3)A class consists of 41 women and 74 men. If a student is randomly selected, what is the probability that the student is a woman?

    4)A survey resulted in the sample data in the given table. If one of the survey respondents is randomly selected, find the probability of getting someone who lives in a flat. Round to the nearest thousandth, if necessary.

    Type of
    accommodation | Number
    ------------------------
    House | 258
    Flat | 518
    Apartment | 406
    Other | 426

    5)Use the relative frequency approach to estimate the probability of the event.
    The data set represents the income levels of the members of a country club. Estimate the probability that a randomly selected member earns at least $88,000

    96,000 104,000 86,000 108,000 87,000 96,000 88,000 84,000 116,000 136,000 85,000 92,000 112,000 87,000 104,000 100,000 88,000 120,000 83,000 100,000

    My anwsers are this
    1).111
    2).250
    3).357
    4).322
    5).700 or 70%

    Thanks for any help.
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  2. #2
    MHF Contributor undefined's Avatar
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    Chicago
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    Quote Originally Posted by Jarod_C View Post
    I was wondering if someone could check my problems for me. I'd really appreciate it. I'm new at statistics so if I'm way off don't hesitate to laugh.
    ...

    My anwsers are this
    1).111
    2).250
    3).357
    4).322
    5).700 or 70%

    Thanks for any help.
    Looks good, here they are as exact fractions

    1) 1/9
    2) 1/4
    3) 41/115
    4) 259/804
    5) 7/10
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  3. #3
    Junior Member Jarod_C's Avatar
    Joined
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    Iowa
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    Thanks for the help. I really appreciate it.
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