practice1 - Math 10 Exam 1 Topics Types and Levels of data...

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Math 10 - Exam 1 Topics Types and Levels of data oCategorical, Discrete or Continuous oNominal, Ordinal, Interval or Ratio Descriptive Statistics oStem and Leaf Graph oDot Plot (Interpret) oGrouped Data Relative and Cumulative Relative Frequencies Histogram Ogive oMean, Median, Mode Skewness oRange, Variance, Standard Deviation Empirical Rule Z-Scores Using Range to estimate Standard Deviation oPercentiles, Quartiles Interquartile Range Box Plot oCorrelation Bivariate Data Scatterplot Correlation Coefficient oOutliers Identifying Effect of outliers on Descriptive Statistics Probability oEmpirical, Classical or Subjective oTerms and Laws of Probability Events and Outcomes Sample Space Complement Unions and Intersections Additive Rule Conditional Probability Tree Diagram Multiplicative Rule Independence oChanging the conditionality oContingency (Two way) Tables Marginal Probabilities Joint Probabilities Conditional Probabilities Discrete Random Variables oMean and Standard Deviation oProbability distribution function (pdf) oProbability problems oBinomial Distribution oPoisson Distribution Continuous Random Variables oMean and Standard Deviation oProbability density function (pdf) oProbability and Percentile problems oUniform Distribution oNormal Distribution oExponential Distribution Central Limit Theorem opdf of the random variable X(3 important parts) oProbability Questions You must bring a picture ID to the exam. You may bring 4 pages of HANDWRITTENnotes to the exam. Bring your probability tables (Binomial Normal, etc) Bring Pencil, Calculator and your notes to the exam–no sharingis allowed during the exam. No cell phone calculators. Cell Phones, iPods, PDAs, and other electronic devices must be turned offand put away. Manage your time so you can attempt every question.
Practice Questions for Exam 11.10% of American adults have Type II diabetes. A test has been developed that has a 80% chance of correctly detecting this disease, but has a false positive rate of 15%. a.Draw a tree diagram of all possibilities, where the first branch represents person having Type II diabetes (positive D+ or negative D-) and the second branch represents the test (positive T+ or negative T-). b.What percentage of American adults will TEST positive for the Type II diabetes? c.Given an adult tests positive for the disease, what is the probability the adult actually has Type II diabetes? 2.The data shown in the scatter plot is the distance traveled and the airfare for 12 flights on Delta Airlines: a.Which of the following is a reasonable estimate of the correlation coefficient? (Circle one answer)

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