Given: A box contains exactly 7 fuses, 3 of which are defective and 4 of which are not defective. In the bar graph above, the left and middle bars are the same height and the right bar is half this height. The heights are intended to represent, respectively, the probabilities of obtaining 0 defective fuses, exactly 1 defective fuse, and 2 defective fuses when 2 fuses are randomly selected without replacement from the box. However, 1 of the bar heights is incorrect. The correct height is k times the height shown.
Asked: Which of the following choices for the bar and the value of k would result in an accurate representation of the labeled probabilities?
The probabilty of obtaining 0 defective fuses when 2 fuses are randomly selected without replacement from the box = 4/7*3/6 = 2/7
The probabilty of obtaining 1 defective fuses when 2 fuses are randomly selected without replacement from the box = 3/7*4/6 + 4/7*3/6 = 4/7
The probabilty of obtaining 2 defective fuses when 2 fuses are
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Asked: Which of the following choices for the bar and the value of k would result in an accurate representation of the labeled probabilities?
The probabilty of obtaining 0 defective fuses when 2 fuses are randomly selected without replacement from the box = 4/7*3/6 = 2/7
The probabilty of obtaining 1 defective fuses when 2 fuses are randomly selected without replacement from the box = 3/7*4/6 + 4/7*3/6 = 4/7
The probabilty of obtaining 2 defective fuses when 2 fuses are
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Statistics : Posted by Kinshook • on 03 Aug 2023, 02:00 • Replies 6 • Views 6243