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# On the importance of statistics in the social sciences
# The importance of statistics in psychological tests
# The importance of statistics in the psychological field
# On the importance of statistics in decision-making
# Samples their importance and objectives
# Physical statistics study samples
# Mathematical analysis of samples
# Psychological count
# Count how to choose a sample
# count and measure
# Count without suffering
# count and describe
# The concept of the sample in applied statistics
# systematic samples
# Samples research methods and their types
# Types of samples in research
# Statistical samples
# Types of statistical samples
# Samples in scientific research
# Samples and methods for their selection
