Question 2 Read the problem carefully and use UPS Check to solve the problems. Show your mathematical thinking and record your final solution. Helen used the information below to find her nine-week grade in Marine Biology. • Test grades 55% of nine weeks grade Daily grades 20% of nine weeks grade • Group presentation grades 25% of nine weeks grade Her test scores were (85, 57, and 82). Her daily grades were (75, 86, 98,97,65,79, 85). Her group presentation grades were (86, 87, 65, 91). What was Helen's nine-week grade in Marine Biology? Round to 2 Decimal places

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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.