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6. Convert each of the following percents to decimals: a. 16% c. 125% 7. Fill in the following blanks to find other expressions for 4%: Fraction Models for every 100 b. for every 50 1. Show which is bigger = or = C. 8 for every a. Using fraction circles b. Using common denominators Probability c. Using decimal representation 8. Rienna has 6 unmarked computer disks in a box, where each is dedicated to exactly one of English, mathematics, French, American history, chemistry, and computer science. Answer the following questions: Fraction Computations a. If she chooses a computer disk at random, what is the probability that she 2. 52 . 3- + 2= = chooses the English disk? b. What is the probability that she chooses a disk that is neither math nor chemistry? 20- 3. 3- 9. A roulette wheel has 38 slots around the rim. The first 36 slots are numbered 1 to 36. Half of these 36 slots are red, and the other half are black. The remaining two slots are numbered 0 and 00 and they are green. As the roulette wheel is spun in Proportional Reasoning one direction, a small ivory ball is rolled along the rim in the opposite direction. The ball has an equally likely chance of falling into any one of the 38 slots. Find 4. If 4 avocadoes sell for $5, how much do 7 avocadoes sell for? each of the following: a. The probability that the ball lands in a black slot b. The probability that the ball does not land on a number from 1 through 12 Decimals and Percents c. The probability that the ball lands on an odd number or on a green slot 5. Express each of the following as percents: a. 7.89 10. At the local high school there are 350 freshman, 320 sophomores, 310 juniors, b. .032 and 400 seniors. If a student is chosen at random from the student body to c. .2 represent the school, what is the probability that the chosen student is a freshman?# v 1. In each of the following, sketch a single spinner With the following 14. HKM Company employs 40 people of the following ages: characteristics: a. The outcomes are M, A, T, and H, each with equally likely probability . 3 1. b- The outcomes are R. A. Md Ta Wll HR} = 3 NA) = = _s v 34 58 21 63 48 52 24 52 37 23 and P(T) = E 23 34 45 46 23 26 21 18 41 2'! 23 45 32 63 20 I9 21 23 S4 62 12. A box contains 5 white balls, 3 black balls, and 2 red bails. a. How many red balls must be added to the box so that the probability of . 3 drawing a red ball is l ? b. How many black. balls musi be added to the original box so that the '1' Draw a stem and l\"f_Pl' for the data _ bi Are more employees In their 405 or in their 505? c. What percentage ofthe people are 50 years or older? 41 32 26 4| 25 IS 23 34 29 26 1 probability of drawing a white ball is ; ? Statistical Granlis _ . . . _ 15. Given the followmg bar graph, estimate the length of the folloWing l'lVC'l'SJ at Mississippi l3.The following pictograph shows the approximate number of people who speak the b' Columbia six most common languages on Earth. a. About how ri'ian)r people speak Spanish? b. About how many people speak English? :3. About how many more people speak Mandarin than Arabic? 16. The following graph shows how the value of a car depreciates each year. This 18. The following data shows the grade distribution for the final examination in a graph allows us to find the trade-in value of a car for each of the first 5 years. The high school algebra course. Draw a circle graph for the data. percents given in the graph are based on the selling price of the new car. Grade: A B C D F a. How much has a $20,000 car depreciated after 5 years? b. What is the approximate trade-in value of a $20,000 car after 4 years? Frequency: 4 10 37 8 c. If you want to trade your car in before it loses half its value, when should you do this? Problems 19 through 21 are based on evaluating misleading graphs Average Trade-in Value 100% 19. Watch the following YouTube link: https://youtu.be/E91bGT9BjYk 809% 'How to Spot a Misleading Graph". According to the video, what is one of the most common ways that graphs misrepresent data? Give an example from the 604 video? Percent of Selling Price 40 20% 20.Find a graph in some media source: newspaper, informational pamphlet, internet or media source, etc. Describe the graph and evaluate it: For example, does the graph seem misleading or does it seem to accurately represent any claims being made about the data? Explain your reasoning. 17. Use the following circle graph to answer the following questions: 21. Include a screenshot (or a drawing) of the graph used in Problem number 20. a. Which two continents make up about half of Earth's surface? b. What is the ratio of the size of Australia to North America? c. If Europe has approximately 4.1 million mi of land, what is the total area Central Measures of Tendency of the land on Earth? 22. Calculate the mean, median, and mode for each of the following data sets: Earth's Land a. 2, 8, 7, 8, 5, 8, 10, 5 b. 10, 12, 12, 14, 20, 16, 12, 14, 11 Africa c. 82, 80, 63, 75, 92, 80, 92, 90, 80, 80 23. The mean score on a set of 20 tests is 75. What is the sum of the 20 test scores? North merica South Europe 24. The mean for a set of 28 scores is 80. Suppose two more students take the test and 129 score 60 and 50. What is the new mean? Other 25. Suppose you own a hat shop and decide to order hats in only one size for the coming season. To decide which size to order, you look at last year's sales figures,which are itemized according to size. Should you find the mean, median, or mode for the data? Why