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Category > Business & Finance Posted 07 Aug 2017 My Price 6.00

The Journal of Visual Impairment

The Journal of Visual Impairment & Blindness published a study of the lifestyles of visually impaired students. Using diaries, the students kept track of several variables, including number of hours sleep obtained in a typical day. These visually impaired students had a mean of 9.06 hours and a standard deviation of 2.11 hours. Assume that the normal distribution of the number of hours of sleep for this group of students is approximately normal. i. Find the probability that a visually impaired student obtains less than 6 hours of sleep on a typical day. ii. Find the probability that a visually impaired student gets between 8 and 10 hours sleep on a typical day. iii. Twenty percent (20%) of a visually impaired students obtained less than how many hours of sleep on a typical day.

 

 

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Status NEW Posted 07 Aug 2017 10:08 AM My Price 6.00

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