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Chapter 1 %u2022 Review Exercises 93v1. NYC trees (1.1) Researchers collected detailed information about trees on New York City streets. The following table displays some data for 8 of the trees. 116 Identify the individuals and variables in this data set. Classify each variable as categorical or quantitative.Tree ID Diameter at breast height (in.) Curb location Health Zip code 28 4 On curb Fair 10455 74 3 On curb Poor 10459 187 26 On curb Good 11360 599 9 On curb Fair 11372 950 5 On curb Good 10463 1025 21 Offset from curb Good 11235 1196 16 On curb Good 11225 1212 7 On curb Good 11225 2. Disc dogs (1.1, 1.2) Here is a list of the breeds of dogs that won the World Canine Disc Championships over a 37-year period. 117 Whippet Labrador retriever Australian shepherd Whippet Mixed breed Australian shepherd Whippet Australian shepherd Australian shepherd Mixed breed Border collie Mixed breed Mixed breed Australian shepherd Border collie Other purebred Mixed breed Border collie Labrador retriever Mixed breed Border collie Mixed breed Mixed breed Other purebred Mixed breed Border collie Border collie Border collie Border collie Mixed breed Mixed breed Australian shepherd Mixed breed Mixed breed Border collie Mixed breed Labrador retriever (a) Summarize the distribution of dog breed with a frequency table. (b) Make a bar chart to display the data. Describe what you see. 3. Popular online sites (1.2) Common Sense Media surveyed a random sample of 1306 U.S. 8- to 18-year-olds in a recent year. One question asked on the survey was %u201cIf you had to pick one online site you didn%u2019t want to live without, which would it be?%u201d The figure shows the percentage of respondents who chose YouTube, Snapchat, TikTok, and Instagram. 118 Explain how the graph gives a misleading impression. 035YouTube30252015105Snapchat TikTok Instagram32%20%13% 13%Site you don%u2019t want to live withoutPercent4. Comparing family income (1.3) The dotplots show the annual income of 40 randomly chosen households each from Connecticut, Indiana, and Maine, based on U.S. Census data. Compare the distributions of income in these three states. 0MaineIndianaConnecticut50 100 150 200Annual household income ($1000s)250 300 3505. Density of the earth (1.4) In 1798, the English scientist Henry Cavendish measured the density of Earth several times by careful work with a torsion balance. The variable recorded was the density of Earth as a multiple of the density of water. Here are Cavendish%u2019s 29 measurements: 119 5.50 5.61 4.88 5.07 5.26 5.55 5.36 5.29 5.58 5.65 5.57 5.53 5.62 5.29 5.44 5.34 5.79 5.10 5.27 5.39 5.42 5.47 5.63 5.34 5.46 5.30 5.75 5.68 5.85 (a) Make a stemplot of the data. (b) Describe the distribution of density measurements. (c) The currently accepted value for the density of Earth is 5.51 times the density of water. How does this value compare to the mean of the distribution of density measurements? 6. Words and music (1.5, 1.6) For a final project in their statistics class, two students studied the impact of different types of background music on students%u2019 ability to remember words from a list they were allowed to study for 5 minutes. Here are data on the number of Chapter 1 Review Exercises %u00a9 Bedford, Freeman & Worth Publishers. For review purposes only. Do not distribute.