In a survey of 300 individual investors regarding subscriptions to the New York Times (NYT), Wall Street Journal (WSJ), and USA Today (UST), the following data were obtained. 120 subscribe to the NYT. 145 subscribe to the WSJ. 68 subscribe to the UST. 39 subscribe to the NYT and WSJ. 28 subscribe to the WSJ and UST. 24 subscribe to the NYT and UST. 42 do not subscribe to any of these newspapers.   (a) How many of the individual investors surveyed subscribe to all three newspapers?   (b) How many subscribe to only one of these newspapers?  investors

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.