Chapter 2: Q.2.61 (page 68)
Use single-value grouping.
Short Answer
a). Frequency distribution,
b). Relative frequency,
c). Frequency histogram,
d). Relative frequency histogram,
Chapter 2: Q.2.61 (page 68)
Use single-value grouping.
a). Frequency distribution,
b). Relative frequency,
c). Frequency histogram,
d). Relative frequency histogram,
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Get started for freeBody Temperature. A study by researchers at the University of Maryland addressed the question of whether the mean body temperature of humans is 98.6~F. The results of the study by P. Mackowiak et al. appeared in the article " A Critical Appraisal of 98.6F, the Upper Limit of the Normal Body Temperature, and Other Legacies of Carl Reinhold August Wunderlich" (Journal of the American Medical Association, Vol. 268, pp. 1578-1580). Among other data, the researchers obtained the body temperatures of 93 healthy humans, as provided on the Weists state site.
a. use the technology of your choice to identify the modality and symmetry (or non-symmetry) of the distribution of the data set.
b. if unimodal, classify the distribution as symmetric right-skewed. or left-skewed.
Construct a stem-and-leaf diagram for the data, using one line per stem.
Exam Scores. The exam scores for the students in an introductory statistics class are as follows.
a. Group these exam scores, using the classes , and .
b. What are the widths of the classes?
c. If you wanted all the classes to have the same width, what classes would you use?
A quantitative data set has been grouped by using limit grouping with equal-width classes. The lower and upper limits of the first class are and , respectively, and the class width is .
a. What is the class mark of the second class?
b. What are the lower and upper limits of the third class?
c. Which class would contain an observation of ?
Construct a stem-and-leaf diagram for the data, using five lines per stem.
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