This poll was conducted by Mason-Dixon Polling & Research, Inc. of Washington, D.C. from July 12 through July 14, 2010. A total of 625 registered Nevada voters were interviewed statewide by telephone. All stated they vote regularly in state elections.
Those interviewed were selected by the random variation of the last four digits of telephone numbers. A cross-section of exchanges was utilized in order to ensure an accurate reflection of the state. Quotas were assigned to reflect voter turn-out by county.
The margin for error, according to standards customarily used by statisticians, is no more than plus or minus 4 percentage points. This means that there is a 95 percent probability that the "true" figure would fall within that range if the entire population were sampled.
The margin for error is higher for any subgroup, such as a gender or regional grouping.
This poll also includes an over-sampling 400 likely voters in the Third Congressional District. This over-sampling is of additional voters added to the statewide survey in order to increase the sample size within the district. These additional respondents were only asked the questions relative to the Third District race. The margin for error on these results is plus or minus 5%.
SAMPLE FIGURES:
Men 303 (48%)
Women 322 (52%)
Democrats 269 (43%)
Republicans 248 (40%)
Independents 108 (17%)
REGION
Clark County 405 interviews
Washoe County 125 interviews
Rural Nevada 95 interviews
http://www.lvrj.com/hottopics/politics/polls/july_2010_1.html
