A survey was conducted to examine the preference for different smartphone brands among three age groups: teenagers (13-19 years), young adults (20-30 years), and adults (31-50 years). 50 teenagers preferred Apple, 30 teenagers preferred Samsung, 60 young adults preferred Apple, 40 young adults preferred Samsung, 40 adults preferred Apple, and 50 adults preferred Samsung. Calculate the expected count for young adults' preference for Samsung smartphones.




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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.