1. Full-time Ph. D students receive an average of $12837 per year. If the average salaries
are...
![subject](/tpl/images/cats/mat.png)
Mathematics, 01.04.2020 01:54 bri663
1. Full-time Ph. D students receive an average of $12837 per year. If the average salaries
are normally distributed with a standard deviation of $ 1500, find these probabilities.
(a) The student makes more than $ 16000
(b) The student makes between $13000 and $15000
2. Each month an American household generates an average of 28 pounds of newspaper
for garbage or recycling . Assume the variable is approximately normally distributed and
standard deviation is 2 pound. If a household is selected at random, find the probability of
its generating
(a) Between 26 and 32 pounds per month
(b) More than 30.4 pounds
3.For a medical study researcher wishes to select people in the middle 60 %of the
population based on blood pressure .Assume the blood pressure readings are normally
distributed and the mean systolic blood pressure is 120 and standard deviation is 8. Find
the upper and lower readings that would qualify people to participate in the study.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/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 17:30, lizzie3545
Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee, f, for a single job is a function of the number, t, of hours it takes him to complete the job. write the function's formula.
Answers: 2
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:30, george6871
Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.
Answers: 2
You know the right answer?
Questions in other subjects:
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 03.09.2020 20:01
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/mat.png)
Mathematics, 03.09.2020 20:01
![Konu](/tpl/images/cats/mir.png)
World Languages, 03.09.2020 20:01