![subject](/tpl/images/cats/mat.png)
Mathematics, 19.02.2021 21:30 briashia
Another teacher decides to average the height of all 15-year-old male students in his classes throughout the day. By the end of the day, he measured the height of 57 boys and calculated an average of 68.1 inches. The known mean height for 15-year-old boys is 67 inches, with a standard deviation of 3.19 inches. What is the percentile rank for this sample? (enter a number only, rounded to the nearest 2 decimal places)
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 20.06.2019 18:04
Find the third,fifth and seventh term sequence described by each rule a(n)=n+1
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:00
Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00
Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 23:00
Solve for x: 5/3 x = 20/21 it's fraction. remember to simplify your fraction
Answers: 2
You know the right answer?
Another teacher decides to average the height of all 15-year-old male students in his classes throug...
Questions
![question](/tpl/images/cats/istoriya.png)
History, 06.07.2019 23:30
![question](/tpl/images/cats/istoriya.png)
History, 06.07.2019 23:30
![question](/tpl/images/cats/istoriya.png)
History, 06.07.2019 23:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/ekonomika.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.07.2019 23:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 06.07.2019 23:30
![question](/tpl/images/cats/mat.png)
Mathematics, 06.07.2019 23:30
![question](/tpl/images/cats/fizika.png)
Physics, 06.07.2019 23:30
![question](/tpl/images/cats/mat.png)
Mathematics, 06.07.2019 23:30
![question](/tpl/images/cats/istoriya.png)
History, 06.07.2019 23:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.07.2019 23:30
![question](/tpl/images/cats/fizika.png)
Physics, 06.07.2019 23:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 06.07.2019 23:30