Mathematics, 11.11.2019 20:31 juliannabartra
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. the students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. researchers found that visually impaired students averaged image for using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. the stude hours of sleep, with a standard deviation of 1.86 hours. assume that the number of hours of sleep for these visually impaired students is normally distributed.
(a) what is the probability that a visually impaired student gets less than 6.5 hours of sleep? (use 3 decimal places.)
(b) what is the probability that a visually impaired student gets between 6.2 and 10.22 hours of sleep? (use 2 decimal places.)
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Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted....
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