Solutions for Ten Lessons in Introductory Sociology
Problem 1SE:
6.1-6.4 Directions Determine whether each of the following variables would best be modeled as...Problem 2SE:
6.1-6.4 Directions Determine whether each of the following variables would best be modeled as...Problem 3SE:
6.1-6.4 Directions Determine whether each of the following variables would best be modeled as...Problem 4SE:
6.1-6.4 Directions Determine whether each of the following variables would best be modeled as...Problem 5SE:
Loaded Die (Example 2) A magician has shaved an edge off one side of a six-sided die, and as a...Problem 7SE:
Distribution of Two Thumbtacks When a certain type of thumbtack is flipped, the probability of its...Problem 8SE:
Distribution of Two Coin Flips When a fair coin is flipped, the probability of its landing heads (H)...Problem 9SE:
Two Thumbtacks a. From your answers in Exercise 6.7, find the probability of getting 0 ups, 1 up, or...Problem 10SE:
Two Coins a. From your answers in Exercise 6.8, find the probability of getting 0 heads, 1 head, or...Problem 11SE:
Snow Depth (Example 3) Eric wants to go skiing tomorrow, but only if there are 3 inches or more of...Problem 12SE:
Snow Depth Refer to Exercise 6.11. What is the probability that the amount of new snow will be...Problem 13SE:
Applying the Empirical Rule with z-Scores The Empirical Rule applies rough approximations to...Problem 14SE:
IQs Wechsler IQs are approximately Normally distributed with a mean of 100 and a standard deviation...Problem 15SE:
SAT Scores Quantitative SAT scores are approximately Normally distributed with a mean of 500 and a...Problem 16SE:
Women’s Heights Assume that college women’s heights are approximately Normally distributed with a...Problem 17SE:
Women’s height (Example 4) College women have a mean height of inches and a standard deviation of...Problem 18SE:
Act scores ACT score are approximately Normally distributed with a mean of 21 and a at standard...Problem 19SE:
Standard Normal Use the table or technology to answer each question. Include an appropriately...Problem 20SE:
Standard Normal Use a table or technology to answer each question. Include an appropriately labeled...Problem 21SE:
Standard Normal Use a table or technology to answer each question. Include an appropriately labeled...Problem 22SE:
Standard Normal Use a table or technology to answer each question. Include an appropriately labeled...Problem 23SE:
Extreme Positive z -Scores For each question, find the area to the right of the given z -score in a...Problem 24SE:
Extreme Negative z-Scores For each question, find the area to the right of the given z-score in a...Problem 25SE:
Females' SAT Scores (Example 5) According to data from the College Board, the mean quantitative SAT...Problem 26SE:
Males' SAT Scores According to data from the College Board, the mean quantitative SAT score for male...Problem 27SE:
Stanford-Binet IQs Stanford-Binet IQ scores for children are approximately Normally distributed and...Problem 28SE:
Stanford-Binet IQs Stanford-Binet IQs for children are approximately Normally distributed and have...Problem 29SE:
Birth Length (Example 6) According to National Vital Statistics, the average length of a newborn...Problem 30SE:
White Blood Cells The distribution of white blood cell count per cubic millimeter of whole blood is...Problem 31SE:
Red Blood Cells: Men The distribution of red blood cell counts is different for men and women. For...Problem 33SE:
SAT Scores in Alaska In Alaska in 2010, the average critical reading SAT score was 518. Assume that...Problem 34SE:
SAT Scores in Connecticut In Connecticut in 2010, the average critical reading SAT score was 509....Problem 35SE:
SAT Scores in New Jersey In New Jersey in 2010, the average critical reading SAT score was 495....Problem 36SE:
SAT Scores in Texas In Texas in 2010, the average critical reading SAT score was 484. Assume that...Problem 37SE:
New York City Weather New York City’s mean minimum daily temperature in February is 27F...Problem 38SE:
Women's Heights Assume for this question that college women's heights are approximately Normally...Problem 39SE:
Probability or Measurement (Inverse)? (Example 7) The Normal model N500,100 describes the...Problem 40SE:
Probability or Measurement (Inverse)? The Normal model N65,2.5 describes the distribution of heights...Problem 41SE:
Inverse Normal, Standard In a standard Normal distribution, if the area to the left of a z - score...Problem 42SE:
Inverse Normal, Standard In a standard Normal distribution, if the area to the left of a z -score is...Problem 43SE:
Inverse Normal, Standard Assume a standard Normal distribution. Draw a separate, well-labeled Normal...Problem 44SE:
Inverse Normal, Standard Assume a standard Normal distribution. Draw a separate, well-labeled Normal...Problem 45SE:
Females' SAT Scores (Example 8) According to the College Board, the mean quantitative SAT score for...Problem 46SE:
Males' SAT Scores According to the College Board, the mean quantitative SAT score for male...Problem 47SE:
Tall Club, Women Suppose there is a club for tall people that requires that women be at or above the...Problem 48SE:
Tall Club, Men Suppose there is a club for tall people that requires that men be at or above the...Problem 49SE:
Women’s Heights Suppose college women’s heights are approximately Normally distributed with a mean...Problem 50SE:
Men’s Heights Suppose college men’s heights are approximately Normally distributed with a mean of...Problem 51SE:
Inverse SATs Critical reading SAT scores are distributed as N500,100. a. Find the SAT score at the...Problem 52SE:
Inverse Women’s Heights College women have heights with the following distribution (inches):...Problem 53SE:
Girls’ and Women’s Heights According to the National Health Center, the heights of 6-year-old girls...Problem 54SE:
Boys’ and Men’s Heights According to the National Health Center, the heights of 5-year-old boys are...Problem 55SE:
Cats’ Birth Weights The average birth weight of domestic cats is about 3 ounces. Assume that the...Problem 56SE:
Elephants’ Birth Weights The average birth weight of elephants is 230 pounds. Assume that the...Problem 57SE:
Gender of Children (Example 10) A married couple plans to have four children, and they are wondering...Problem 58SE:
Coin Flip A coin will be flipped four times, and the number of heads recorded. Explain why this is a...Problem 59SE:
Coin Flips (Example 10) A teacher wants to find out whether coin flips of pennies have a 50 chance...Problem 60SE:
Twins In Exercise 6.59 you are told to assume that none of the children will be twins or other...Problem 61SE:
Divorce Suppose that the probability that a randomly selected person who has recently married for...Problem 62SE:
Divorce Suppose that the probability that a randomly selected person who has recently married for...Problem 63SE:
Identifying n, p, and x (Example 11) For each situation, identify the sample size n, the probability...Problem 64SE:
Identifying n, p, and x For each situation, identify the sample size n, the probability of success...Problem 65SE:
Stolen Bicycles (Example 12) According to the Sydney Morning Herald, 40 of bicycles stolen in...Problem 66SE:
Florida Recidivism Rate The three-year recidivism rate of parolees in Florida is about 30; that is,...Problem 68SE:
Cornell Admission The undergraduate admission rate at Cornell University in 2012 was 16. a. Assuming...Problem 69SE:
Wisconsin Graduation Wisconsin has the highest high school graduation rate of all states at 90#37;....Problem 70SE:
Colorado Graduation Colorado has a high school graduation rate of 75#37;. a. In a random sample of...Problem 71SE:
Florida Homicide Clearance The homicide clearance in Florida is 60. A crime is cleared when an...Problem 72SE:
Virginia Homicide Clearance The homicide clearance rate in Virginia is 74. A crime is cleared when...Problem 73SE:
DWI Convictions (Example 13) In New Mexico, about 70 of drivers who are arrested for driving while...Problem 74SE:
Internet Access A 2013 Gallup poll indicated that about 80 of U.S. households had access to a...Problem 75SE:
Drunk Walking You may have heard that drunk driving is dangerous, but what about drunk walking?...Problem 76SE:
Texting While Driving According to a Pew poll in 2012, 58 of high school seniors admit to texting...Problem 77SE:
Coin Flip (Example 14) A fair coin is flipped 50 times. a. What is the expected number of heads? b....Problem 78SE:
Drivers Aged 60-65 According to GMAC Insurance, 20 of drivers aged 60-65 fail the written drivers'...Problem 81CRE:
Birth Length A study of U.S. births published on the website Medscape from WebMD reported that the...Problem 82CRE:
Birth Length A study of U.S. births published on the website Medscape from WebMD reported that the...Problem 83CRE:
Males’ Body Temperatures A study of human body temperatures using healthy men showed a mean of 98.1F...Problem 84CRE:
Females’ Body Temperatures A study of human body temperatures using healthy women showed a mean of...Problem 86CRE:
Cremation Rates in Mississippi, Binomial and Empirical Rule Cremation rates have been increasing in...Browse All Chapters of This Textbook
Chapter 1 - Introduction To DataChapter 2 - Picturing Variation With GraphsChapter 3 - Numerical Summaries Of Center And VariationChapter 4 - Regression Analysis: Exploring Associations Between VariablesChapter 5 - Modeling Variation With ProbabilityChapter 6 - Modeling Random Events: The Normal And Binomial ModelsChapter 7 - Survey Sampling And InferenceChapter 8 - Hypothesis Testing For Population ProportionsChapter 9 - Inferring Population MeansChapter 10 - Associations Between Categorical Variables
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