Mathematics, 21.10.2021 01:00 erbnichole
For a 4-units class like Statistics, students should spend average of 12 hours per week studying for the
class. A survey was done on students, and the distribution of total study hours per week is bell-shaped with
a mean of 15 hours and a standard deviation of 3 hours.
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raries Online
Use the Empirical Rule to answer the following questions.
and
hours on this
ft Teams
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a) 68% of the students spend between
class.
b) What percentage of the students between 6 and 18 hours on this class?
c) What percentage of the students above 9 hours?
Answers: 2
Mathematics, 21.06.2019 15:30
Jordan rides his bike 6 7/15 miles every day to deliver newspapers and to go to and from school. if his ride to and from school is 4 3/10 miles, how many miles is the trip to deliver newspapers? 1 1/3 1 1/6 2 1/6 2 4/5
Answers: 1
Mathematics, 21.06.2019 21:50
Aparticular telephone number is used to receive both voice calls and fax messages. suppose that 25% of the incoming calls involve fax messages, and consider a sample of 25 incoming calls. (a) what is the expected number of calls among the 25 that involve a fax message?
Answers: 1
Mathematics, 21.06.2019 22:00
Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.
Answers: 2
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