AP PSYCHOLOGY

RESEARCH METHODS THINKING CRITICALLY WITH PSYCHOLOGICAL SCIENCE

THE SCIENTIFIC METHOD AND DESCRIPTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When would a histogram be used to display data?
A
For continuous data
B
For a correlation study
C
For an observation study
D
For discrete data (in categories)
Explanation: 

Detailed explanation-1: -It is used to summarize discrete or continuous data that are measured on an interval scale. It is often used to illustrate the major features of the distribution of the data in a convenient form. It is also useful when dealing with large data sets (greater than 100 observations).

Detailed explanation-2: -Histogram is the representation of data when data is represented in the class interval.

Detailed explanation-3: -A histogram represents the frequency distribution of continuous variables, whereas a bar graph is a diagrammatic comparison of discrete variables.

Detailed explanation-4: -Histograms are good for showing general distributional features of dataset variables. You can see roughly where the peaks of the distribution are, whether the distribution is skewed or symmetric, and if there are any outliers.

There is 1 question to complete.