Chapter 2: Q.2.131 (page 80)
Identify and sketch three distribution shapes that are symmetric
Short Answer
1-Bell shaped distribution

2-normal distribution

3-Triangular distribution

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Chapter 2: Q.2.131 (page 80)
Identify and sketch three distribution shapes that are symmetric
1-Bell shaped distribution

2-normal distribution

3-Triangular distribution

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Use cutpoint grouping with a first class of -under .

The Great White Shark. In an article titled "Great White, Deep Trouble" (National Geographic, Vol. 197(4). pp. 2-29). Peter Benchley - the author of JAWS - discussed various aspects of the Great White Shark (Carcharodon Carcharias). Data on the number of pups borne in a lifetime by each of 80 Great White Shark females are given on the WeissStats 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.
Gas Mileage. The gas mileages, are rounded to the nearest number of miles per gallon, of all new car models.
America's Melting Pot. The U.S. Census Bureau publishes data on the population of the United States by race and Hispanic origin in American Community Survey. From that document, we constructed the following bar chart. Note that people who are Hispanic may be of any race, and people in each race group may be either Hispanic or not Hispanic.

a. Explain why a break is shown in the first bar.
b. Why was the graph constructed with a broken bar?
c. Is this graph potentially misleading? Explain your answer.
Use limit grouping with the first class of and a class width of .

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