4r statistics and probability relearning
- 1. Statistics and Probability Relearning Page #1: I can determine if ascatterplothas a positive,negativeornocorrelation. 1. How do youread a graph? Whichdirectiondoyoureada graph to determinecorrelation? 2. If the graph movesupand to the right,what type of correlationdoesithave? 3. If the graph movesdownandto the right,what type of correlationdoesithave? 4. If the x value increasesasthe yvalue increases,whattype of correlationdoesithave? 5. If the x value increasesasthe yvalue decreases,whattype of correlationdoesithave? Describe the correlationof the graphsbelow: 5. 6. 7.
- 2. Page 2 and 3: I can create a scatter plot, draw in the line of best fit, and draw a conclusion about the trend of the data. 8. What is a strong correlation?Howdothe pointscompare to a line? 9. What is a weakcorrelation?Howdothe pointscompare to a line? 10. What twothingsdo youneedto keepinmindwhendrawingaline of bestfit? 11. Afterdrawinga line of bestfit,howdoyoudetermine the slopeandy-intercept? 12. Whichline ismostrepresentative of the data?Explain. 13. Describe the type of relationshipinthe graphbelow.Include strongorweakinyourdescription.
- 3. 14. Draw a line of bestfit. a. Findthe slope andy-intercept b. Howmuch can you expectaninfanttoweighat 6 monthsold? c. At 5 monthsold,howmuchcouldyou expectaninfanttoweigh?
- 4. Page 4: I can constructand interprettwo-waytablesof data. 15. What are marginal frequenciesandhow doyou findthem? 16. What isthe ratiousedto findpercentages? 17. How doyou knowwhatheadingstouse whencreatinga frequencytable? 18. Answerthe questionsbasedonthe two-waytable a. How manypeople were surveyed? b. Howmany people surveyedspeakmore thanone language? c. What percentof people surveyedspeakmore thanone language? d. What percentof people surveyedhave beenoutside the U.S.? 19.