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Mathematics, 27.09.2019 02:30 Hiadamcom
The following is the frequency distribution for the speeds of a sample of automobiles traveling on an interstate highway.
speed (mph) frequency
50 β 54 2
55 β 59 4
60 β 64 5
65 β 69 10
70 β 74 9
75 β 79 5
the mean is
(a) 35
(b) 10
(c) 67
(d) 670
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Answers: 3
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