
Concept explainers
Identify survey to produce a random sample.

Answer to Problem 1CYU
Not a random sample.
Explanation of Solution
Given information:
Survey every third person coming out of an ice cream shop to find people’s favourite type of dessert.
Calculation:
Here, random sample means that the sample in which every values of population have equally likely chance to be selected. Each value has equal probability to be selected.
Now, every third person coming out of an ice cream shop is selected. That is persons coming out from shop have not equal probability to be selected.
Hence, it is not a random sample.
Chapter 12 Solutions
Algebra 2
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