Multiple Choice
In a study, the mean height of all students in a university is calculated using the heights of every student. Is this mean value a or a ?
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4. Probability
Basic Concepts of Probability
Multiple Choice
Which of the following best describes the difference between a and a in statistics?
A
A collects data from every member of the , while a collects data from only a subset of the .
B
A is used only for qualitative data, while a is used only for quantitative data.
C
A collects data from a random sample, while a collects data from the entire .
D
A and a are two terms for the same process in statistics.
Verified step by step guidance1
Step 1: Understand the definition of a population in statistics, which is the entire group of individuals or items that you want to study or draw conclusions about.
Step 2: Define a census as the process of collecting data from every single member of the population, ensuring complete information without any sampling error.
Step 3: Define sampling as the process of selecting a subset of individuals or items from the population to collect data, which is often used to make inferences about the whole population.
Step 4: Recognize that a census involves gathering data from all members, while sampling involves only a part of the population, which helps save time and resources but introduces sampling variability.
Step 5: Conclude that the key difference is that a census collects data from every member of the population, whereas sampling collects data from only a subset, making the first answer choice the correct description.
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