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13 November, 13:03

What is the probability that a person has a hemoglobin level above 11 if he is in the 25-35 age group? Hemoglobin

Level Person's Age

Less than

25 years 25-35 years Above 35 years Total

Less than 9 21 32 76 129

Between 9

and 11 49 52

Above 11 69 40

Total 139 128 162 429 A. 0.125

B. 0.298

C. 0.344

D. 0.356

E. 0.687

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Answers (2)
  1. 13 November, 13:09
    0
    What is the probability that a person who is above 35 years old has a hemoglobin level of 9 or above?

    0.357

    0.313

    0.531

    0.343

    0.432

    46/147=131

    b. 147
  2. 13 November, 13:18
    0
    Person's Age: 25 years 25-35 years 35 years Total

    Hemoglobin level

    Less than 9 21 32 76 129

    Between 9 and 11 49 52

    Above 11 69 40

    Total 139 128 162 429

    128 - 32 - 52 = 44

    44/128 = 0.34375 Choice C.
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