a) There are 18 girls and 18 boys in a class. To find out their most favorite subjects in the class, 5 girls and 5 boys are selected at random for an interview. What type of sampling method is used? (i) Is it a probability sampling or non-probability sampling? (ii) Can this method help to get rid of bias in sampling? (iii) (b) To conduct a survey about the opinions of people on a new smart phone just launched to the market, the first 200 people walking out of a shopping mall are interview. Identify the sampling method/ What type of sampling method is used? Is it a probability sampling or non-probability sampling? (i) (ii)
a) There are 18 girls and 18 boys in a class. To find out their most favorite subjects in the class, 5 girls and 5 boys are selected at random for an interview. What type of sampling method is used? (i) Is it a probability sampling or non-probability sampling? (ii) Can this method help to get rid of bias in sampling? (iii) (b) To conduct a survey about the opinions of people on a new smart phone just launched to the market, the first 200 people walking out of a shopping mall are interview. Identify the sampling method/ What type of sampling method is used? Is it a probability sampling or non-probability sampling? (i) (ii)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:(a) There are 18 girls and I8 boys in a class. To find out their most favorite subjects in the class,
5 girls and 5 boys are selected at random for an interview.
(i)
What type of sampling method is used?
Is it a probability sampling or non-probability sampling?
(ii)
Can this method help to get rid of bias in sampling?
(ii)
(b) To conduct a survey about the opinions of people on a new smart phone just launched to the
market, the first 200 people walking out of a shopping mall are interview. Identify the
sampling method/
What type of sampling method is used?
(ii) Is it a probability sampling or non-probability sampling?
(i)
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