Homework Help is Here – Start Your Trial Now!
Math
Statistics
Find the mean of the data summarized in the given frequency Speed (miles per hour) Frequency 42-45 26 The mean of the frequency distribution is miles per hour. (Round to the nearest tenth as needed.) 46-49 12 50-53 6 54-57 4 58-61 2 C

Find the mean of the data summarized in the given frequency Speed (miles per hour) Frequency 42-45 26 The mean of the frequency distribution is miles per hour. (Round to the nearest tenth as needed.) 46-49 12 50-53 6 54-57 4 58-61 2 C

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 51.1 miles per hour. Speed (miles per hour) Frequency The mean of the frequency distribution is miles per hour. (Round to the nearest tenth as needed.). 42-45 26 46-49 12 50-53 6 54-57 4 58-61 2
Transcribed Image Text:Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 51.1 miles per hour. Speed (miles per hour) Frequency The mean of the frequency distribution is miles per hour. (Round to the nearest tenth as needed.). 42-45 26 46-49 12 50-53 6 54-57 4 58-61 2
A student's course grade is based on one midterm that counts as 5% of his final grade, one class project that counts as 20% of his final grade, a set of homework assignments that counts as 30% of his final grade, and a final exam that counts as 45% of his final grade. His midterm score is 79, his project score is 99, his homework score is 85, and his final exam score is 66. What is his overall final score? What letter grade did he earn (A, B, C, D, or F)? Assume that a mean of 90 or above is an A, a mean of at least 80 but less than 90 is a B, and so on. His overall final score is (Type an integer or a decimal. Do not round.)
Transcribed Image Text:A student's course grade is based on one midterm that counts as 5% of his final grade, one class project that counts as 20% of his final grade, a set of homework assignments that counts as 30% of his final grade, and a final exam that counts as 45% of his final grade. His midterm score is 79, his project score is 99, his homework score is 85, and his final exam score is 66. What is his overall final score? What letter grade did he earn (A, B, C, D, or F)? Assume that a mean of 90 or above is an A, a mean of at least 80 but less than 90 is a B, and so on. His overall final score is (Type an integer or a decimal. Do not round.)
Expert Solution
Step 1

given data 

speed frequency(f) midpoint(x) f*x
42-45 26 43.5 1131
46-49 12 47.5 570
50-53 6 51.5 309
54-57 4 55.5 222
58-61 2 59.5 119
  n = 50   ∑fx = 2351
steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS