Coin Toss Circle Graph I

Transcription

1 Coin Toss Circle Graph I Trial Two Heads Two Tails One of Each Classroom Strategies Blackline Master IV - 1 Page 181

2 Coin Toss Circle Graph II Trial Two Heads Two Tails One of Each Trial Two Heads Two Tails One of Each Page 182 Classroom Strategies Blackline Master IV - 2

3 Circle Marked with Percentages 25% 10% 50% 0%--100% 75% Classroom Strategies Blackline Master IV - 3 Page 183

4 Double Line Graph In Centerville, merchants have kept up with the amount of money people spend on video game rentals and in using public video games. The results are in the table below. Year Video Rental Income Video Arcade Income 1980 $15,000 $25, $18,000 $20, $22,000 $15, $26,500 $12, $31,800 $10, Make a double line graph of the data shown. 2. In approximately which year were the two incomes equal? 3. What would you predict for video rental income in 2005? 4. What would you predict for video arcade income in 2005? Income from Video Games Income $35, $30, $25, $20, $15, $10, $5, Year Page 184 Classroom Strategies Blackline Master IV - 4

5 Double Bar Graph The age-adjusted prevalence of combined overweight and obesity (BMI 25) in racial/ethnic minorities--especially minority women--is generally higher than in whites in the United States. Black women (20+ years old): 65.8 percent Mexican-American women (20+ years old): 65.9 percent White women (20+ years old): 49.2 percent Black men (20+ years old): 56.5 percent Mexican-American men (20+ years old): 63.9 percent White men (20+ years old): 61.0 percent Studies using this definition of overweight and obesity (BMI 25) provide ethnicity-specific data only for these three racial-ethnic groups. Studies using other definitions of overweight and obesity, as described earlier, find a high prevalence of overweight and obesity among Hispanics and Native Americans. The prevalence of overweight and obesity in Asian Americans is lower than in the general population. Clinical Guidelines on the Identification, Evaluation, and Treatment of Overweight and Obesity in Adults, National Institutes of Health, National Heart, Lung, and Blood Institute, June Using data from the information above, create a double bar graph showing percentages of obesity of men and women in each ethnic group. Obesity in Various Ethnic Groups in the U.S. Percentage of Obese Individuals Black Mexican- American White Women Men Ethnic Group Classroom Strategies Blackline Master IV - 5 Page 185

6 Beliefs About UFOs Galileo was threatened because he believed that the Earth went around the Sun and many people believed the Sun went around the Earth. A survey was given to people asking what they think about UFOs. They could choose among the following: Military: Most UFOs are our own planes or other manmade machines. Natural: Most UFOs are natural things such as planets, comets, meteors, gas balls. Hoaxes: Most UFOs are invented by people who like to play jokes. LGM: (Little Green Men) UFOs are ships from outer space. Hoaxes Natural LGM Military 1. What do most people think UFOs are? 2. Which two answers got about the same number of responses? 3. If 1000 people were surveyed, about how many answered in each category? 4. About what fraction of the people thought UFOs were a natural event? Page 186 Classroom Strategies Blackline Master IV - 6

7 Four in a Row Algebraic Expression Suggested expressions: x + y x - y -x + 2y x - y -(x + y) 2x - 3y y Classroom Strategies Blackline Master IV - 7 Page 187

8 Initial Point Original Coordinates: 1 (, ) 2 (, ) 3 (, ) 4 (, ) 5 (, ) 6 (, ) 7 (, ) 8 (, ) 9 (, ) 10 (, ) Transformed Coordinates: 1 (, ) 2 (, ) 3 (, ) 4 (, ) 5 (, ) 6 (, ) 7 (, ) 8 (, ) 9 (, ) 10 (, ) Page 188 Classroom Strategies Blackline Master IV - 8

9 Asteroid Study Here is a chart of some of the asteroids that have been named. Name Diameter Orbital Period (miles) (Earth years) Ceres Pallas Juno Vesta Astraea Hebe Iris Flora Metis Hygeia Gaspra 10 Mathilde 33 --One of Isaac Asimov s first short stories was named Marooned Off Vesta. Notes: --There are about 30,000 asteroids in orbit between Mars and Jupiter. NASA mission NEAR (Near Earth Asteroid Rendezvous) was launched in 1996 to explore the asteroids. 1. Find the mean and the median for the diameters of the asteroids listed. Median Mean - 2. Find the average orbital period of these asteroids. Some scientists think the asteroid belt is the remnant of a planet which exploded. If there was a planet there, how long do you think it took it to go around the sun? 3. Round the diameters to the nearest 100. Ceres Pallas Juno Vesta Astraea Hebe Iris Flora Metis Hygeia Gaspra Mathilde 4. What is the mode of the diameters after they have been rounded to the nearest hundred? 5. Many more of the 30,000 asteroids have been catalogued and measured. The ones listed include the first ones discovered and the ones explored by NEAR. If we had measurements from all the asteroids, do you think the mode you found in example number four would be close to the mode of the entire set? Why or why not? Classroom Strategies Blackline Master IV - 9 Page 189

10 Alien Language In the book, My Teacher is an Alien, by Bruce Coville, we have a very small sample of Broxholm s alien language. Besides his name, Broxholm, we have the phrase Ign rrzznyx iggn gnrrr. The graph below compares, some of the letters of English and the alien language. Number of Times Used Number of Times Letters are Used in a 100 Letter Passage A E I O U T N R X Z Letters English Alien 1. What are the four most commonly used letters in English? 2. What are the most commonly used letters in the alien speech? 3. Which letters show the most differences from ours? 4. Which letters are used with the same frequency they are in English? 5. How many vowels would be used in the English 100-letter paragraph? 6. How many vowels would be used in the alien 100-letter paragraph? 7. Based on the sample shown here, what use could this comparison of languages have? Page 190 Classroom Strategies Blackline Master IV - 10

11 Mini Review - Statistics Use the data below to answer the following questions. Distance (in feet) that Students Can Throw a Baseball girls boys 1. What is the shortest distance that any girl can throw? 2. What is the longest distance that any boy can throw? 3. What is the median distance for girls? 4. What is the median distance for boys? 5. What is the mean distance for girls? 6. What is the mean distance for boys? 7. Compare the ranges of the two sets of data. 8. Write a statement comparing the distance girls can throw a baseball to the distance boys can throw a baseball. 9. The girls have a lower mean throwing distance. Does this indicate that boys throw farther than girls? Explain. Classroom Strategies Blackline Master IV - 11 Page 191

12 Mini Review Statistics (cont.) Number of Students at LHS Medical School by Gender 300 Number of Students Women Men Year 1. About how many men were medical students in 1910? 2. About how many women were medical students in 1930? 3. About how many medical students were there in all in 1950? 4. In which year did the student body contain approximately 50 women? 5 In which year did the student body consist of approximately the same number of male and female students? 6. How many female students would you predict in the year 2000? 7. How many male students would you predict in the year 2000? 9. Do you think the patterns can continue indefinitely? Explain. 10. In which year did the pattern change drastically for women? What do you think the reason for this change might have been? Page 192 Classroom Strategies Blackline Master IV - 12