![subject](/tpl/images/cats/mat.png)
Mathematics, 24.09.2020 15:01 ChristLover2863
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class. A survey
was done on 20 students, and the distribution of total study hours per week is bell-shaped with a mean of
13 hours and a standard deviation of 2.5 hours.
Use the Empirical Rule to answer the following questions.
a) 68% of the students spend between
hours and
hours on Statistics each week.
b) 95% of the students spend between
hours and
hours on Statistics each week.
c) 99.7% of the students spend between
hours and
hours on Statistics each week.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:40, Nyasiahenry
The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?
Answers: 2
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
You know the right answer?
For a 4-unit class like Statistics, students should spend average of 12 hours studying for the class...
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mkx.png)
Arts, 20.07.2019 06:00
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/en.png)
English, 20.07.2019 06:00
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 20.07.2019 06:00
![Konu](/tpl/images/cats/biologiya.png)
Biology, 20.07.2019 06:00
![Konu](/tpl/images/cats/en.png)