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Math Help - Just finished an assignment

  1. #1
    Newbie
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    Just finished an assignment

    This is worth quite a bit of marks guys, I already answered every question but I'd appreciate it they could be double checked to see if I made any mistakes as this will be included with my midterm and I'm really hoping to get accepted into university.

    #1.
    The volume of cola in 355-mL cans is normally distributed with a standard deviation of 3 mL.
    mL
    What percent of cans have a volume greater than 359 mL?
    a. 90.82%
    c. 35.9%
    b. 50%
    d. 9.18%
    e. 64.1%
    f. None of the above

    #2.
    Heights of males are approximately normally distributed with a mean of 170 cm and a standard
    deviation of 8 cm. What fraction of males are taller than 176 cm?
    a. .2266
    c. .6000
    b. .2500
    d. .2734
    e. .7500
    f. None of the above

    #3
    The heights of students at a college are normally distributed with a mean of 175 cm and a standard
    deviation of 6 cm. One might expect in a sample of 1000 students that the number with heights
    less than 163 cm is:
    a. 23
    c. 228
    b. 997
    d. 456
    e. 477
    f. None of the above

    #4.
    The height of an adult male is known to be normally distributed with a mean of 69 inches and a
    standard deviation of 2.5 inches. The height of the doorway such that 96 percent of the adult males
    can pass through it without having to bend is:
    a. about 74
    c. about 65
    b. 1.8
    d. about 80
    e. about 58
    f. None of the above

    1

    KU __

    #5.
    A correlation coefficient of 0.9 means:
    a. The mean is 0.9
    b. The median is 0.9
    e. The data is spread out
    c. The line is a bad fit to the data
    d. The line is a good fit to the data
    f. None of the above

    #6.
    Which central measure is most resistant to outliers?
    a. Mean
    c. Correlation Coefficient
    b. Median
    d. Box plot
    e. Standard Deviation
    f. None of the above

    #7.
    The total area under a normal curve is:
    a. 3.14
    b. 1
    e. 360

    c. 100
    d. 32
    f. None of the above

    #8.
    Which of the following is a characteristic of the normal distribution?
    a. Centered about the median
    c. Skewed to the right
    b. Symmetrical
    d. Skewed to the left
    e. Broken into quartiles
    f. None of the above

    #9. The measure of centre that is connected to standard deviation is:
    a. the median
    b. the mean
    c. the mode
    d. none of the above

    #10. The measure of centre that is connected to box plots is:
    a. the median
    b. the mean
    c. the mode
    d. none of the above

    #11. What is the area under a normal distribution between -1 and 1 standard deviations?
    a. the mean
    b. the median
    c. the mode
    d. the range
    e. none of the above

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  2. #2
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    re: Just finished an assignment

    just noticed a mistake haha, number #10 should be the median not the mean
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  3. #3
    MHF Contributor
    skeeter's Avatar
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    re: Just finished an assignment

    MHF policy is clear in not providing assistance for graded work.
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