the frequencies of three class intervals 54-58, 59-63 , 64-68 of a distribution are respectively 4,8 and 12 . the frequency density of the 2nd class is . :- (a) 1 , (b) 1.2 , (c) 1.6 , (d) 2.
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c) yr answer is 1.6
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hey can I ask 1 questions
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ok yr
if a variable x takes thr the value 12 and 24 with equal frequencies , then mean of x is
if you don't I give answer you later
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Answer:
class frequency mean f. d
54-58 4 4 4/4=1
59-63 8 4 8/4=2
64-68 12 4 12/4=3
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