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March 25, 2017

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the life expectancy of lung cancer patient treated with a new drug is normally distributed with a mean of 4 years and a standard deviation of 10 months what is the probability that a randomly selected lung cancer patient will last more than 5 years

  • statistics - ,

    Z = (x - μ)/SD (converted to years)

    Z = (5 -4)/SD (converted to years)

    Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion higher than that Z score.

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