Transcription of AP Statistics 2019 Free-Response Questions
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AP Statistics 2019 Free-Response Questions
2019 AP StatisticsFree-Response Questions 2019 The College Board. College Board, Advanced Placement, AP, AP Central, and the acorn logo are registered trademarks of the College Board. Visit the College Board on the web: AP Central is the official online home for the AP Program: 2019 AP Statistics Free-Response Questions Formulas begin on page 3. Questions begin on page 6. Tables begin on page 14. -2-Formulas(I)Descriptive Statistics -3-xixn 211xsxxin 221212121111pnsn ssnn 01 ybbx 12iiixxy ybxx 01bybx 11iixyxxyyrnss 1yxsbrs 221 2iibiyynsxx 2019 AP Statistics Free-Response Questions (II)Probability()()()()PA BPA PB PA B -4-()()()PA BPABPB ()EXxpxii 22 Var( )xixXxpis If X has a binomial distribution with parameters n and p, then: ()(1)nknkPX kppk npx (1)nppxs pp (1) pppns If x is the mean of a random sample of size n from an infinite population with mean
2. Researchers are investigating the effectiveness of using a fungus to control the spread of an insect that destroys . trees. The researchers will create four different concentrations of fungus mixtures: 0 milliliters per liter (ml/L), 1.25 ml/L, 2.5 ml/L, and 3.75 ml/L. An equal number of the insects will be placed into 20 individual containers.
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