5). Everyone in Sanjay's class has the same laptop. After fully charging their laptons.
record...
Mathematics, 06.03.2020 23:10, AutumnJoy12
5). Everyone in Sanjay's class has the same laptop. After fully charging their laptons.
records how many hours each laptop lasts before it needs the next charge. The class data was
recorded and graphed as shown at right. The data has a mean of 5.9 hours with a standard
deviation of 1.6.
a. Is a normal distribution an appropriate model for how
long a laptop lasts before needing a charge?
b. Assume that these laptops represent all the laptops at
the school. What is the chance that a randomly selected
laptop will last for the full school day of 7 hours?
1
2
9 10
3 4 5 6 7 8
battery life (hours)
c. In what percentile is a laptop that lasts less than 5 hours?
Answers: 1
Mathematics, 21.06.2019 17:30, bradleycawley02
Lems1. the following data set represents the scores on intelligence quotient(iq) examinations of 40 sixth-grade students at a particular school: 114, 122, 103, 118, 99, 105, 134, 125, 117, 106, 109, 104, 111, 127,133, 111, 117, 103, 120, 98, 100, 130, 141, 119, 128, 106, 109, 115,113, 121, 100, 130, 125, 117, 119, 113, 104, 108, 110, 102(a) present this data set in a frequency histogram.(b) which class interval contains the greatest number of data values? (c) is there a roughly equal number of data in each class interval? (d) does the histogram appear to be approximately symmetric? if so, about which interval is it approximately symmetric?
Answers: 3
Mathematics, 21.06.2019 19:00, love123jones
Explain why the factor 1.5 is broke. into two numbers in the model.
Answers: 3
Mathematics, 21.06.2019 22:00, kiararoman1715
Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?
Answers: 2
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