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Chapter 2: Q2.10 (page 41)
A) First Column : Quantitative Ordinal Variable ; B) Second Column : Qualitative Categorical ; C) Third Column : Quantitative Continuous Variable ;
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Deceptive Graphs. In Exercises 17鈥�20, identify how the graph is deceptive.
Incomes and Academic Degrees The accompanying graph depicts workers with various academic degrees along with their income levels.
In Exercises 5鈥�8, identify the class width, class midpoints, and class boundaries for the given frequency distribution. Also identify the number of individuals included in the summary. The frequency distributions are based on real data from Appendix B.
Blood Platelet Count of Males | Frequency |
0-99 | 1 |
100-199 | 51 |
200-299 | 90 |
300-399 | 10 |
400-499 | 0 |
500-599 | 0 |
600-699 | 1 |
Information provided by the World Meteorological Association revealed following data on the highest recorded temperature for each continent.
a. What type of data is presented in the first column of the table ?
b. What type of data is presented in the second column of the table ?
c. What type of data is presented in the third column of the table ?
d. What type of data is provided by the information that Death Valley is in the United States?
In Exercises 1鈥�6, refer to the data below, which are total home game playing times (hours) for all Major League Baseball teams in a recent year (based on data from Baseball Prospectus).
236 237 238 239 241 241 242 245 245 245 246 247 247 248 248 249 250 250 250 251 252 252 253 253 258 258 258 260 262 264
Data Type
a. The listed playing times are all rounded to the nearest whole number. Before rounding, are the exact playing times discrete data or continuous data?
b. For the listed times, are the data categorical or quantitative?
c. Identify the level of measurement of the listed times: nominal, ordinal, interval, or ratio.
d. Which of the following best describes the sample data: voluntary response sample, random sample, convenience sample, simple sample?
e. The listed total game times are from one recent year, and the data are available for all years back to 1950. Given that the listed times are part of a larger collection of times, do the data constitute a sample or a population?
In Exercises 1鈥�6, refer to the data below, which are total home game playing times (hours) for all Major League Baseball teams in a recent year (based on data from Baseball Prospectus).
236 237 238 239 241 241 242 245 245 245 246 247 247 248 248 249 250 250 250 251 252 252 253 253 258 258 258 260 262 264
Frequency Distribution For the frequency distribution from Exercise 1, find the following.
a. Class limits of the first class
b. Class boundaries of the first class
c. Class midpoint of the first class
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