2. (a) Two bags A and B contain red and blue marbles. Bag A contains 7 red and 8 blue marbles. Bag (10) B contains 9 red

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2. (a) Two bags A and B contain red and blue marbles. Bag A contains 7 red and 8 blue marbles. Bag (10) B contains 9 red

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2 A Two Bags A And B Contain Red And Blue Marbles Bag A Contains 7 Red And 8 Blue Marbles Bag 10 B Contains 9 Red 1
2 A Two Bags A And B Contain Red And Blue Marbles Bag A Contains 7 Red And 8 Blue Marbles Bag 10 B Contains 9 Red 1 (42.03 KiB) Viewed 33 times
2. (a) Two bags A and B contain red and blue marbles. Bag A contains 7 red and 8 blue marbles. Bag (10) B contains 9 red and 7 blue marbles. One bag is selected randomly and one marble is drawn. If the drawn marble is red then what is the probability that this drawn marble is from bag A? (b) For the given set of observations showing weekly sale of a specific type of refrigerators. (10) 35, 56, 43, 21, 43, 56, 78, 12, 56, 47, 76, 23, 52 (i) Find mean and standard deviation. (ii) Find and describe X 2(sd)
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