cupkakekawaii45
12.07.2019 •
Mathematics
Aresearcher decides to investigate whether there are any changes in people’s iq scores from early adulthood through late adulthood. the researcher (and others) begins with a sample of 21-year-olds and plans to follow this group until they are 80 years old. the type of research design she is planning to employ is called a design. cross-sectional longitudinal time-lag sequential
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Ответ:
88 rolls of 2.
Step-by-step explanation:
By proportion that would be 220 * 20/50
= 220 * 0.4
= 88.