Statistics, Binder Ready Version: Unlocking the Power of Data
Statistics, Binder Ready Version: Unlocking the Power of Data
2nd Edition
ISBN: 9781119163664
Author: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock
Publisher: WILEY
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Concept explainers

Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as p…
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Chapter 2.7, Problem 227E

a.

To determine

Identify the three variables in Figure 2.86 as categorical or quantitative.

b.

To determine

Identify the two regions that seem to have the greatest happiness score.

Identify the two regions that seem to have the greatest ecological footprint.

c.

To determine

Identify the region that seems to have the lowest happiness score.

Check whether the ecological footprint tends to be high or low in that area.

d.

To determine

Identify whether there is a positive relationship between happiness score and ecological footprint by ignoring the region.

e.

To determine

Identify whether there is positive relationship between happiness score and ecological footprint by considering only region 2.

f.

To determine

Indicate whether Country CR is in the top left, top right, bottom left, or bottom right of the scatterplot.

g.

To determine

Identify the variables to be focussed to move more countries to the top left of the scatterplot, the countries in region 4.

Explain whether that variable has to increase or decrease.

Identify the variables to be focussed to move more countries to top left of the scatterplot, the countries in region 2.

Explain whether that variable has to be increased or decreased.

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Chapter 2 Solutions

Statistics, Binder Ready Version: Unlocking the Power of Data

Ch. 2.1 - Exercises 2.1 to 2.4 provide information about...Ch. 2.1 - Exercises 2.1 to 2.4 provide information about...Ch. 2.1 - Prob. 3ECh. 2.1 - Prob. 4ECh. 2.1 - Prob. 5ECh. 2.1 - Prob. 6ECh. 2.1 - Prob. 7ECh. 2.1 - Prob. 8ECh. 2.1 - Prob. 9ECh. 2.1 - Prob. 10E
Ch. 2.1 - In Exercises 2.11 and 2.12, a two-way table is...Ch. 2.1 - Prob. 12ECh. 2.1 - Prob. 13ECh. 2.1 - Prob. 14ECh. 2.1 - Prob. 15ECh. 2.1 - Prob. 16ECh. 2.1 - Prob. 17ECh. 2.1 - Prob. 18ECh. 2.1 - Prob. 19ECh. 2.1 - Culture and Mental Illness A recent study13...Ch. 2.1 - Prob. 21ECh. 2.1 - Prob. 22ECh. 2.1 - Prob. 23ECh. 2.1 - Prob. 24ECh. 2.1 - Electrical Stimulation for Fresh Insight? If we...Ch. 2.1 - Exercises 2.26 to 2.29 use data on college...Ch. 2.1 - Prob. 27ECh. 2.1 - How Accurate Are Student Perceptions? Students in...Ch. 2.1 - Prob. 29ECh. 2.1 - Prob. 30ECh. 2.1 - Prob. 31ECh. 2.1 - Prob. 32ECh. 2.1 - Prob. 33ECh. 2.1 - Prob. 34ECh. 2.1 - Prob. 35ECh. 2.1 - Prob. 36ECh. 2.1 - Prob. 37ECh. 2.1 - Prob. 38ECh. 2.1 - Prob. 39ECh. 2.1 - Prob. 40ECh. 2.1 - Prob. 41ECh. 2.2 - Exercises 2.42 to 2.48 refer to histograms A...Ch. 2.2 - Prob. 43ECh. 2.2 - Prob. 44ECh. 2.2 - Exercises 2.42 to 2.48 refer to histograms A...Ch. 2.2 - Prob. 46ECh. 2.2 - For each of the four histograms E, F, G, and H,...Ch. 2.2 - Prob. 48ECh. 2.2 - In Exercises 2.49 to 2.52, draw any dotplot to...Ch. 2.2 - Prob. 50ECh. 2.2 - Prob. 51ECh. 2.2 - Prob. 52ECh. 2.2 - Prob. 53ECh. 2.2 - Prob. 54ECh. 2.2 - Prob. 55ECh. 2.2 - Prob. 56ECh. 2.2 - Prob. 57ECh. 2.2 - Prob. 58ECh. 2.2 - Prob. 59ECh. 2.2 - Prob. 60ECh. 2.2 - Prob. 61ECh. 2.2 - Prob. 62ECh. 2.2 - Prob. 63ECh. 2.2 - Prob. 64ECh. 2.2 - Prob. 65ECh. 2.2 - Prob. 66ECh. 2.2 - Prob. 67ECh. 2.2 - Prob. 68ECh. 2.2 - Donating Blood to Grandma? Can young blood help...Ch. 2.2 - Prob. 70ECh. 2.2 - Prob. 71ECh. 2.2 - Prob. 72ECh. 2.2 - Prob. 73ECh. 2.2 - Prob. 74ECh. 2.2 - Prob. 75ECh. 2.2 - Prob. 76ECh. 2.2 - Prob. 77ECh. 2.3 - For the datasets in Exercises 2.78 to 2.83, use...Ch. 2.3 - Prob. 79ECh. 2.3 - Prob. 80ECh. 2.3 - Prob. 81ECh. 2.3 - Prob. 82ECh. 2.3 - Prob. 83ECh. 2.3 - Prob. 84ECh. 2.3 - Prob. 85ECh. 2.3 - Prob. 86ECh. 2.3 - Prob. 87ECh. 2.3 - Prob. 88ECh. 2.3 - Prob. 89ECh. 2.3 - Prob. 90ECh. 2.3 - Prob. 91ECh. 2.3 - Prob. 92ECh. 2.3 - Prob. 93ECh. 2.3 - Prob. 94ECh. 2.3 - Prob. 95ECh. 2.3 - Prob. 96ECh. 2.3 - In Exercises 2.94 to 2.97, indicate whether the...Ch. 2.3 - Prob. 98ECh. 2.3 - Prob. 99ECh. 2.3 - Prob. 100ECh. 2.3 - Prob. 101ECh. 2.3 - Prob. 102ECh. 2.3 - Prob. 103ECh. 2.3 - Prob. 104ECh. 2.3 - Prob. 105ECh. 2.3 - Prob. 106ECh. 2.3 - Prob. 107ECh. 2.3 - Prob. 108ECh. 2.3 - Prob. 109ECh. 2.3 - Prob. 110ECh. 2.3 - Prob. 111ECh. 2.3 - Prob. 112ECh. 2.3 - Laptop Computers and Sperm Count Studies have...Ch. 2.3 - Prob. 114ECh. 2.3 - Prob. 115ECh. 2.3 - Prob. 116ECh. 2.3 - Prob. 117ECh. 2.3 - Which Accomplishment of LeBron James Is Most...Ch. 2.3 - Prob. 119ECh. 2.3 - Prob. 120ECh. 2.3 - Prob. 121ECh. 2.3 - Largest and Smallest Standard Deviation Using only...Ch. 2.3 - Prob. 123ECh. 2.3 - Prob. 124ECh. 2.3 - Prob. 125ECh. 2.3 - Prob. 126ECh. 2.3 - Prob. 127ECh. 2.3 - Prob. 128ECh. 2.3 - Prob. 129ECh. 2.3 - Prob. 130ECh. 2.4 - In Exercises 2.131 and 2.132, match the five...Ch. 2.4 - Prob. 132ECh. 2.4 - Prob. 133ECh. 2.4 - Prob. 134ECh. 2.4 - Prob. 135ECh. 2.4 - Exercises 2.133 to 2.136 show a boxplot for a set...Ch. 2.4 - Prob. 137ECh. 2.4 - Prob. 138ECh. 2.4 - Prob. 139ECh. 2.4 - Prob. 140ECh. 2.4 - Literacy Rate Figure 2.39 gives a boxplot showing...Ch. 2.4 - Young Blood Helps Old Brains Exercise 2.69 on page...Ch. 2.4 - Prob. 143ECh. 2.4 - Prob. 144ECh. 2.4 - Prob. 145ECh. 2.4 - Audience Scores on Rotten Tomatoes The variable...Ch. 2.4 - Do Movie Budgets Differ Based on the Genre of the...Ch. 2.4 - Do Audience Ratings Differ Based on the Genre of...Ch. 2.4 - Physical Activity by Region of the Country in the...Ch. 2.4 - Prob. 150ECh. 2.4 - Prob. 151ECh. 2.4 - How Do Honeybees Communicate Quality? When...Ch. 2.4 - Prob. 153ECh. 2.4 - Prob. 154ECh. 2.4 - Prob. 155ECh. 2.4 - Prob. 156ECh. 2.4 - Prob. 157ECh. 2.4 - Prob. 158ECh. 2.4 - Prob. 159ECh. 2.5 - Match the scatterplots in Figure 2.54 with the...Ch. 2.5 - Match the scatterplots in Figure 2.54 with the...Ch. 2.5 - Prob. 162ECh. 2.5 - Prob. 163ECh. 2.5 - Prob. 164ECh. 2.5 - Prob. 165ECh. 2.5 - Prob. 166ECh. 2.5 - Prob. 167ECh. 2.5 - Prob. 168ECh. 2.5 - Prob. 169ECh. 2.5 - Prob. 170ECh. 2.5 - Prob. 171ECh. 2.5 - Prob. 172ECh. 2.5 - Prob. 173ECh. 2.5 - Prob. 174ECh. 2.5 - Prob. 175ECh. 2.5 - Prob. 176ECh. 2.5 - Prob. 177ECh. 2.5 - Prob. 178ECh. 2.5 - Mother’s Love, Hippocampus, and Resiliency...Ch. 2.5 - Prob. 180ECh. 2.5 - Prob. 181ECh. 2.5 - Prob. 182ECh. 2.5 - Prob. 183ECh. 2.5 - Prob. 184ECh. 2.5 - Prob. 185ECh. 2.5 - Prob. 186ECh. 2.5 - Prob. 187ECh. 2.5 - Prob. 188ECh. 2.5 - Prob. 189ECh. 2.5 - Prob. 190ECh. 2.5 - Prob. 191ECh. 2.5 - Prob. 192ECh. 2.5 - Prob. 193ECh. 2.5 - Prob. 194ECh. 2.5 - Iris Petals Allometry is the area of biology that...Ch. 2.5 - Create a Scatterplot Draw any scatterplot...Ch. 2.5 - Prob. 197ECh. 2.5 - Do Movies with Larger Budgets Get Higher Audience...Ch. 2.5 - Prob. 199ECh. 2.6 - In Exercises 2.200 to 2.203, two variables are...Ch. 2.6 - Prob. 201ECh. 2.6 - Prob. 202ECh. 2.6 - Prob. 203ECh. 2.6 - Prob. 204ECh. 2.6 - Prob. 205ECh. 2.6 - Use technology to find the regression line to...Ch. 2.6 - Prob. 207ECh. 2.6 - Prob. 208ECh. 2.6 - Prob. 209ECh. 2.6 - Is It Getting Harder to Win a Hot Dog Eating...Ch. 2.6 - Prob. 211ECh. 2.6 - Football and Cognitive Percentile Exercise 2.143...Ch. 2.6 - Prob. 213ECh. 2.6 - Prob. 214ECh. 2.6 - Prob. 215ECh. 2.6 - Height and Weight Using the data in the...Ch. 2.6 - Prob. 217ECh. 2.6 - Prob. 218ECh. 2.6 - Prob. 219ECh. 2.6 - Prob. 220ECh. 2.6 - Prob. 221ECh. 2.6 - Prob. 222ECh. 2.6 - Prob. 223ECh. 2.6 - Prob. 224ECh. 2.6 - Prob. 225ECh. 2.7 - Prob. 226ECh. 2.7 - Prob. 227ECh. 2.7 - Prob. 228ECh. 2.7 - Visualizing Football and Brain Size Exercise 2.143...Ch. 2.7 - Prob. 230ECh. 2.7 - Prob. 231ECh. 2.7 - Prob. 232ECh. 2.7 - Prob. 233ECh. 2.7 - Prob. 236ECh. 2.7 - Prob. 237ECh. 2.7 - Prob. 239ECh. 2.7 - Prob. 240ECh. 2.7 - Prob. 241ECh. 2.7 - Prob. 244ECh. 2.7 - Prob. 245ECh. 2.7 - Prob. 246ECh. 2.7 - Prob. 247ECh. 2.7 - Prob. 248ECh. 2.7 - Prob. 249ECh. 2.7 - Prob. 250ECh. 2.7 - Prob. 251ECh. 2.7 - Prob. 252ECh. 2.7 - Prob. 253ECh. 2.7 - Prob. 254ECh. 2.7 - Prob. 256ECh. 2.7 - Prob. 257ECh. 2.7 - Prob. 258ECh. 2.7 - Prob. 259ECh. 2.7 - Prob. 260ECh. 2.7 - Prob. 268E
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