A factory has 20 assembly lines producing a popular toy. to inspect a representative sample of 100 toys, quality control staff randomly selects 5 toys from each line's output. was this a simple random sample? a yes, because the toys were selected at random b no, because not all combinations of 100 toys could have been chosen c no, because toys do not come off the assembly line at random d yes, because each toy had an equal chance to be selected e yes, because a stratified sample is a type of simple random sample
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