The following table shows the rate R of vehicular involvement in traffic accidents (per 100,000,000 vehicle-miles) as a function of vehicular speed s, in miles per hour, for commercial vehicles driving at night on urban streets. Speed s Accident rate R 20 1550 25 700 30 200 35 250 40 650 45 1300 (a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.) R = ________         (b) Calculate  R(50).  (Round your answer to two decimal places.) R(50) =  ____ Explain what your answer means in practical terms. Commercial vehicles driving at night on urban streets at  50 miles per hour have traffic accidents at a rate of  ____ per 100,000,000 vehicle miles.   c)At what speed is vehicular involvement in traffic accidents (for commercial vehicles driving at night on urban streets) at a minimum?_______

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
icon
Related questions
icon
Concept explainers
Question

The following table shows the rate R of vehicular involvement in traffic accidents (per 100,000,000 vehicle-miles) as a function of vehicular speed s, in miles per hour, for commercial vehicles driving at night on urban streets.

Speed s Accident rate R
20 1550
25 700
30 200
35 250
40 650
45 1300
(a) Use regression to find a quadratic model for the data. (Round the regression parameters to two decimal places.)
R = ________
 
 
 
 



(b) Calculate 
R(50).
 (Round your answer to two decimal places.)
R(50) =  ____


Explain what your answer means in practical terms.
Commercial vehicles driving at night on urban streets at  50 miles per hour have traffic accidents at a rate of  ____ per 100,000,000 vehicle miles.
 
c)At what speed is vehicular involvement in traffic accidents (for commercial vehicles driving at night on urban streets) at a minimum?_______
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 6 steps with 7 images

Blurred answer
Knowledge Booster
Correlation, Regression, and Association
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
Algebra
ISBN:
9780134463216
Author:
Robert F. Blitzer
Publisher:
PEARSON
Contemporary Abstract Algebra
Contemporary Abstract Algebra
Algebra
ISBN:
9781305657960
Author:
Joseph Gallian
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Algebra And Trigonometry (11th Edition)
Algebra And Trigonometry (11th Edition)
Algebra
ISBN:
9780135163078
Author:
Michael Sullivan
Publisher:
PEARSON
Introduction to Linear Algebra, Fifth Edition
Introduction to Linear Algebra, Fifth Edition
Algebra
ISBN:
9780980232776
Author:
Gilbert Strang
Publisher:
Wellesley-Cambridge Press
College Algebra (Collegiate Math)
College Algebra (Collegiate Math)
Algebra
ISBN:
9780077836344
Author:
Julie Miller, Donna Gerken
Publisher:
McGraw-Hill Education