Corresponding relative frequency
The first class in a relative frequency table is 50-59 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate?
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The responses of sample of 1040 people who were asked if they air quality in their community is better or worse than it was 10 years ago are showing below: Better: 350 ; worse: 450; same: 240. Find the mean, median and mode of the data.
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Many people think that a national lobby's successful fight against gun control legislation is reflecting the will of a minority of Americans. A random sample of 4,000 citizens yielded 2,250 who are in favor of gun control legislation. Estimate the
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