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Work Exercises 1 and 2 using the formula for the probability density function and a hand...

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Basic Math

Work Exercises 1 and 2 using the formula for the probabilitydensity function and a hand calculator. Do not use EXCEL. Show allof your work.

  1. Assume 45% of all persons three years of age and older wearglasses or contact lenses, For a randomly selected group of sevenpeople, what is the probability that
    1. Exactly 3 wear glasses or contact lenses?
    2. At least 3 wear glasses or contact lenses?
    3. At most 5 wear glasses or contact lenses?
    4. Between 2 and 6 wear glasses or contact lenses?

  1. Assume 75% of youths 12-17 years of age have a systolic bloodpressure less than 136 mm of mercury. What is the probability thata sample of 12 youths of that age will include
    1. Exactly 8 who have systolic blood pressure less than 136?
    2. Less than 10 who have systolic blood pressure less than136?
    3. At least 10 who have systolic blood pressure less than136?
    4. Between 5 and 8 who have systolic blood pressure less than136?

  1. Use EXCEL to complete the entries in the following table.Assume
    1. X represents the number of current cigarette smokers in asample of size 10.
    2. Each selected subject has a 25% of being a current cigarettesmoker.
    3. Being a current cigarette smoker is independent for allsubjects

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