A Cross-Section Graph

question 45

Multiple Choice

A cross-section graph

• A) is divided into different sections.
• B) shows values of an economic variable for different groups in a population at a point in time.
• C) measures time on the x-axis and the variable in which we are interested on the y-axis.
• D) Both answers A and C are correct.
• E) Both answers B and C are correct.

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Definitions:

Sample Mean

The sample mean is the average value of a sample set of numbers, calculated as the sum of the individual values divided by the number of values in the sample.

Population Mean

The average of all the items in a population, representing the central tendency.

Critical Value

A point on a statistical distribution that represents a threshold at which the null hypothesis is rejected if exceeded.