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________ locks allow other transactions to read but not update a record or other resource.
Demographic Variables
Characteristics of populations used in social science research, such as age, gender, income level, marital status, ethnicity, and education level.
Packaging Preference
Consumer's or user's favoritism towards the design, material, and functionality of packaging for products.
Self-Selected Samples
Samples where the individuals select themselves into the group, potentially leading to biased results.
Sampling Bias
The bias that occurs when a sample is not representative of the population from which it's drawn.
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