A survey of 1000 women ages 20 to 30 found that their heights were normally distributed, with a mean of 65 in, and a standard deviation of 2.5 in. a. How many of the women have a height that is within 1 deviation of the mean? b. How many of the women have a height that is between 60 in, and 70 in.?

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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.