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2) A survey was conducted among 340 high school girls in which they were polled regarding whether they were right-handed or left-handed and whether or
2) A survey was conducted among 340 high school girls in which they were polled regarding whether they were right-handed or left-handed and whether or not they played a musical instrument. The table below displays the results of the survey: Play Does not play Total Right-Handed 74 236 310 Left-Handed 18 12 30 Total 92 248 340 If the likelihood of a girl playing an instrument is independent of left or right-handedness, what is the expected number in the cell representing right-handed girls who play a musical instrument? (A) 62 (B) 74 (C) 80.2 (D) 83.9 (E) 92.1
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