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Chapter 4 THIS IS With Your Host... Percents Probability Proportions Conversions Probs with Percents Wild Card 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500 Find 44% of 600. A 100 264 A 100 What percent of 60 is 6? A 200 10% A 200 2 is what percent of 12? A 300 16.7% A 300 32 is 70% of what number? A 400 45.7 A 400 25% of what number is 10 A 500 40 A 500 You roll a number cube. Find P( number greater than 5) B 100 1/6 B 100 Find the P(even greater than 3) when rolling a number cube. B 200 1/3 B 200 In a batch of 850 calculators, 15 were found to be defective. What is the probability that a calculator chosen at random will be defective? Write the probability as a percent, rounding to the nearest tenth. B 300 15/850 = 1.8% B 300 Suppose you choose a marble from a bag containing 3 red marbles, 6 white marbles, and 1 blue marble. You return the first marble to the bag and then choose again. Find P(red and blue). B 400 3/100 B 400 You have seven $1 bills, two $5 bills, and three $10 bills in your wallet. You select a bill at random. Without replacing the bill, you choose a second bill at random. Find P($10 then $1). B 500 7/44 B 500 Solve. 2 8 9 x C 100 x 36 C 100 Solve. x4 4 3 6 C 200 x=6 C 200 A van travels 120 miles on 5 gallons of gas. Find how many gallons the van needs to travel 600 miles. C 300 25 gallons C 300 DAILY Place A Wager DOUBLE C 400 The pair of figures is similar. Find x. 12 x 5 3 C 400 36/5 = 7 1/5 C 400 Human hair grows at a rte of about 0.33 mm per day. How much does it grow in 60 days? C 500 19.8 mm C 500 Write the conversion factor for seconds to minutes. Use the factor to convert 225 seconds to minutes. D 100 3.75 minutes D 100 A 16 oz bottle of water costs $1.32. What is the cost per ounce? D 200 $0.0825 per oz D 200 A boy makes 50 cents per day on his paper route. How much money will he make in a year? D 300 $182.50 per year D 300 A scale of a blue-print is 1in to 4 ft. What are the actual dimensions of the bathroom which is 2in by 4in? D 400 8ft by 16ft D 400 Scale: 1in to 4ft Blueprint dimensions: 2in by 4in What is the actual area of the bathroom? D 500 128 ft2 D 500 A cell phone company orders 300 new phones from a manufacturer. If the probability fo a phone being defective is 1.8%, predict how many of the phones are likely to be defective. Round to the nearest whole number. E 100 5 E 100 The art teachers at school planned to take 250 students on a field trip to an art museum. One teacher found that 5 of her 25 students could identify a painting by DaVinci before the field trip. What is the experimental probability that a student in the teacher’s class could identify a DaVinci painting. Write it as a percent rounded to the nearest tenth. E 200 1/5 = 20% E 200 Based on the P(students identifying the Da Vinci) = 20% from the previous question, how many of the 250 students would be able to identify the Da Vinci? E 300 50 E 300 Is this event independent or dependent? Explain. Toss a nickle and then toss a dime. E 400 Independent E 400 Are the two events dependent or independent? Explain. Pick a marble from a bowl of marbles. Keep the marble and pick another. E 500 Dependent E 500 Who is Ms. Cowan’s favorite team? F 100 Alabama Crimson Tide F 100 What is the best cheer ever? F 200 ROLL TIDE! F 200 The probability of the complement of an event is always less than the probability of the event itself; true or false? F 300 false F 300 If A and B are independent events and P(A) and P(B) are both greater than 1/2, then P(A and B) is never greater than 1; true or false? F 400 true F 400 The cross products of a proportion are never equal; true or false? F 500 false F 500 The Final Jeopardy Category is: Please record your wager. Click on screen to begin Final Jeopardy Question Click on screen to continue Correct Final Jeopardy Response Click on screen to continue Thank You for Playing Jeopardy! Game Designed By C. Harr-MAIT