Math 3 Quiz
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STATISTICS & PROBABILITY
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A fitness tracker company analyzes step count data from users in two age groups. Young adults (20-30): mean = 8,500 steps, standard deviation = 2,100 steps. Older adults (60-70): mean = 6,200 steps, standard deviation = 1,400 steps. The company wants to set personalized daily step goals that capture the middle 68% of each group's typical activity levels. What ranges should they use?
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