Which of the following is a true statement about nonrandom samples? Nonrandom samples are never really useful. Nonrandom samples have sampling error in them whereas random samples are free of sampling error. In nonrandom sampling, not every observation has the same probability of being selected. Nonrandom samples are usually difficult to get.
Which of the following is a true statement about nonrandom samples? Nonrandom samples are never really useful. Nonrandom samples have sampling error in them whereas random samples are free of sampling error. In nonrandom sampling, not every observation has the same probability of being selected. Nonrandom samples are usually difficult to get.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please answer both.
Transcribed Image Text:uestion 7
Which of the following is a true statement about nonrandom samples?
Nonrandom samples are never really useful.
Nonrandom samples have sampling error in them whereas random samples are free of sampling error.
In nonrandom sampling, not every observation has the same probability of being selected.
Nonrandom samples are usually difficult to get.
O O O
Transcribed Image Text:Question 8
Use the following chart to answer the question. What is the value of the maximum data point in this sample?
Stem unit
Leaf unit
10
%3D
1
Frequency Stem
1 4
1 5
17 6
Leaf
9.
5
01222455556688999
0111233345666778999
19
7
8
0133557
4
9.
0122
49
90
92
492
49
O O OO
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