Giabear23
30.10.2020 •
Mathematics
Upon reconsidering the above problem, the psychologist decides that the age of the child may affect the attention span. Consequently, the psychologist randomly assigns fifteen 10 year olds, fifteen 8 year olds, fifteen 6 year olds, and fifteen 4 year olds to watch one of three commercials, and their attention spans are measured.
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Ответ:
16
Step-by-step explanation:
count the dots. each is one observation