Calculate mean by direct method.
X-58, 60, 62, 64, 66,68
F-12, 14, 20, 13, 8, 5
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Answer:
59.38
Explanation:
fixi=696+640+1240+832+528+340=4276
fi=12+14+20+13+8+5=72
mean=fixi/fi
=4276/72
=59.38
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