A new machine used in the production of motor mount bolts was put into operation. Five samples of size 100 were randomly selected and the number of defectives in each sample was noted. 
What is the average percent defective?
Definitions:
Child Rearing
The practices, strategies, and methods used by caregivers to support and guide the development of a child from infancy through adolescence.
Under-Emphasised
Something that is given less importance or attention than necessary.
Experimental Method
Intentional manipulation of independent variables in order to investigate effects on one or more dependent variables.
Social Psychologists
Scholars who study how an individual's thoughts, feelings, and behaviors are influenced by the actual or imagined presence of others.
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