The mean and the standard deviation of one sample are respectively 54.4 and 8; the mean and the standard deviation of another sample are 50.3 and 7 respectively. The size of the first sample is 50 and that of the second is 100. Find the mean and standard deviation of the composite sample (size 150) combining the aforesaid two samples.
The mean and the standard deviation of one sample are respectively 54.4 and 8; the mean and the standard deviation of another sample are 50.3 and 7 respectively. The size of the first sample is 50 and that of the second is 100. Find the mean and standard deviation of the composite sample (size 150) combining the aforesaid two samples.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
Related questions
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 3 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill