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    Statistics: Correlation Coefficient, Probability and Measurement

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    Q1)
    The diastolic blood pressure, x, and the systolic blood pressure, y, were recorded for 13 females.
    x 76 70 82 90 68 60 62 60 62 72 68 80 74
    y 122 102 118 126 108 130 104 118 130 116 102 122 120
    Find the correlation coefficient (and all related values) for these data:

    Q2)
    Suppose a certain ophthalmic trait is associated with eye color. One hundred and fifty randomly selected individuals are studied with results as follows:
    Trait Blue Brown Other Total
    Yes 35 15 10 60
    No 10 55 25 90
    Total 45 70 35 150

    What is the probability that a person selected at random has blue eyes?
    What is the probability that a person selected at random has the trait?
    Are events A(has blue eyes) and B(has the trait) independent?

    Q3)
    The commuting distance was determined for each of 9 employees at a manufacturing plant. One of the employees lives in another town and has a large commuting distance. The 9 distances were as follows: 5, 10, 7, 15, 10, 12, 8, 120, 18.
    Fined the mean:
    Find the median distance:
    Which measurement is most representative for the data?

    © BrainMass Inc. brainmass.com June 4, 2020, 1:24 am ad1c9bdddf
    https://brainmass.com/statistics/quantative-analysis-of-data/statistics-correlation-coefficient-probability-measurement-398312

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    Solution Summary

    The solution determines the correlation coefficient, probability and measurement of various statistics questions.

    $2.19

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