Q.2. a box contains 9 blue and 6 red balls. four balls are selected at random without replacement. if x represents the number of blue balls in the selected 4 balls, then (a) construct the probability density table.
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total number of balls =9+6=15
p (red balls) = 6/15
p (blue balls)=9/15
p (red balls) = 6/15
p (blue balls)=9/15
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