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Chemistry Histogram Practice Name: _____________________ Period: _____________________ Part I: Questions about histograms. Go to the website http://quarknet.fnal.gov/toolkits/ati/histograms.html and read the article on histograms to answer the following questions. 1. How are values graphed in a histogram? 2. What information does a histogram show about the data with respect to the mean of the data? 3. In real life situations, how are data graphed for a histogram plot? 4. What is an advantage to using histograms? Click the link for “Shodor Histogram Page” at the bottom of the website to answer the following questions: 5. What is the mean body fat from the “252 Men” dataset? 6. Scroll down below the histogram mentioned above so you can see the data table. Add Lance Armstrong with 4% body fat. Click “update histogram” right below the actual graph. What is the new mean body fat? 7. Now add Brian Urlacher’s body fat of 6.2%. What is the new mean? Part II. Make your own histogram. A pharmaceutical production worker at a major drug company obtained the following amounts of purified antibody to bovine protein. Create your own histogram from the data (in grams). 565 575 562 582 598 555 557 577 544 548 Hints: How large are your bins? What is the frequency for each bin? 588 580 552 554 555
