Homework Help is Here – Start Your Trial Now!
Math
Statistics
(a) A distribution consists of three components with total frequencies of 200, 250 and'300 having mean 25, 10 and 15 respectively. Find the mean of combined distribution. (b) In a series with 100 items, having simple mean of 40, later on it was discovered that two items of 45, 35 were wrongly taken as 35 and 25. Find the correct mean. (c) A man travelled by auto for 3 days. He covered 480 kilometres each day. He drove the first day 10 hours @ 48 kilometres per hour, the second day 12 hours @ 40 kilometres per hour and third day 15 hours @ 32 kilometres per hour. What was his average speed ?

(a) A distribution consists of three components with total frequencies of 200, 250 and'300 having mean 25, 10 and 15 respectively. Find the mean of combined distribution. (b) In a series with 100 items, having simple mean of 40, later on it was discovered that two items of 45, 35 were wrongly taken as 35 and 25. Find the correct mean. (c) A man travelled by auto for 3 days. He covered 480 kilometres each day. He drove the first day 10 hours @ 48 kilometres per hour, the second day 12 hours @ 40 kilometres per hour and third day 15 hours @ 32 kilometres per hour. What was his average speed ?

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
(a) A distribution consists of three components with total frequencies of 200, 250 d'300 having mean 25, 10 and 15 respectively. Find the mean of combined distribution. (b) In a series with 100 items, having simple mean of 40, later on it was discovered that two items of 45, 35 were wrongly taken as 35 and 25. Find the correct mean. (c) A man travelled by auto for 3 days. He covered 480 kilometres each day. He drove the first day 10 hours @ 48 kilometres per hour, the second day 12 hours @ 40 kilometres per hour and third day 15 hours @ 32 kilometres per hour. What was his average speed ?
Transcribed Image Text:(a) A distribution consists of three components with total frequencies of 200, 250 d'300 having mean 25, 10 and 15 respectively. Find the mean of combined distribution. (b) In a series with 100 items, having simple mean of 40, later on it was discovered that two items of 45, 35 were wrongly taken as 35 and 25. Find the correct mean. (c) A man travelled by auto for 3 days. He covered 480 kilometres each day. He drove the first day 10 hours @ 48 kilometres per hour, the second day 12 hours @ 40 kilometres per hour and third day 15 hours @ 32 kilometres per hour. What was his average speed ?
Expert Solution
steps

Step by step

Solved in 4 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar 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