subject
Mathematics, 05.04.2021 17:10 melanie12566

The percent y of U. S. college freshmen who identified computer science as their probable field of study from 2001 to 2005 decreased in a pattern that was approximately parabolic. The least squares regression parabola y = at² + bt + c for the data is found by solving the system
5c + 15b + 55a = 9.7
15c + 55b + 225a = 23.9
55c +225b + 979a = 77.3
Let t represent the year, with t=1 corresponding to 2001.​

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 21:00
What is the length and width of a 84.5 square foot rug? will mark
Answers: 1
question
Mathematics, 21.06.2019 22:30
60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?
Answers: 1
question
Mathematics, 21.06.2019 23:30
What is the measure of angle x? a.101 b.158 c.44 d.79
Answers: 1
question
Mathematics, 22.06.2019 00:30
Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?
Answers: 2
You know the right answer?
The percent y of U. S. college freshmen who identified computer science as their probable field of s...
Questions
question
Biology, 05.05.2020 08:23
question
English, 05.05.2020 08:23
question
Mathematics, 05.05.2020 08:23