Mathematics, 16.01.2020 22:31 julesR9814
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 were obtained on a typical day. researchers found that visually impaired students averaged 9.87 hours of sleep, with a standard deviation of 1.1 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 6.1 hours of sleep? b. what is the probability that a visually impaired student gets between 6.5 and 7.89 hours of sleep?
Answers: 2
Mathematics, 21.06.2019 20:30
Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0
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Mathematics, 21.06.2019 20:30
Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?
Answers: 1
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted....
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