Mathematics, 04.04.2020 13:04 sciencecreation87
The time needed to complete a final examination in a particular college course is normally distributed with a mean of 80 minutes and a standard deviation of 10 minutes. If students have only 90 minutes to complete the exam, what percentage of the class will not finish the exam in time?
Answers: 2
Mathematics, 21.06.2019 21:30
An annual marathon covers a route that has a distance of approximately 26 miles. winning times for this marathon are all over 2 hours. the following data are the minutes over 2 hours for the winning male runners over two periods of 20 years each. earlier period 14 12 15 22 13 10 19 13 9 14 20 18 16 20 23 12 18 17 6 13 recent period 7 11 7 14 8 9 11 14 8 7 9 8 7 9 9 9 9 8 10 8 (a) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the earlier period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks. for more details, view how to split a stem.) minutes beyond 2 hours earlier period 0 1 2 (b) make a stem-and-leaf display for the minutes over 2 hours of the winning times for the recent period. use two lines per stem. (use the tens digit as the stem and the ones digit as the leaf. enter none in any unused answer blanks.) minutes beyond 2 hours recent period (c) compare the two distributions. how many times under 15 minutes are in each distribution
Answers: 2
Mathematics, 22.06.2019 06:00
Mustafa heloise and gia have written more than a combined total of 22 articles for the school newspaper.heloise has written 1/4 has written articles as mustafá has gia has written 3/2 as many written articles as mustafá has
Answers: 1
Mathematics, 22.06.2019 06:50
Which statement is true about the graphs of the two line y=-8x-5/4 and y=1/8x+4/5
Answers: 1
The time needed to complete a final examination in a particular college course is normally distribut...
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