Find the value of \[3{{f}_{1}}-{{f}_{2}}\] if mean for the following frequency distribution is 1.46. | |||||||
Variable | 0 | 1 | 2 | 3 | 4 | 5 | Total |
Frequency | 46 | 76 | 38 | f1 | 10 | f2 | 200 |
A) 60
B) 70
C) 80
D) 65
E) None of these
Correct Answer: B
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