1. August 28, 2013 Keystone & Stats

2. August 29, 2013 Keystone & Stats

3. August 30, 2013 Keystone & Stats No 3 rd /4 th Period

4. September 3, 2013 Keystone & Stats No 3 rd /5th

5. September 4, 2013 Keystone & Stats

6. September 5, 2013 Keystone & Stats

7. September 9, 2013 What is the greatest common factor (GCF) of 2, 4, 14? A. 2B. 14C.28D. 112 What is the least common multiple(LCM) of 10, 18? A. 2B. 18C.90D. 180 Keystone

8. September 10, 2013 Keystone

9. September 11, 2013 Keystone

10. September 12, 2013 Simplify: Keystone

11. September 13, 2013 Simplify: Keystone

12. September 13, 2013 Joe’s test grades in History class are: 92, 89, 85, 89, and 90. The semester final will count as two tests. Joe needs to get a grade of 90 or higher for the semester. What is the minimum score Joe can get on the final test and average 90? Stats

13. September 16, 2013 Simplify: Keystone

14. September 16, 2013 Maggie recently took a road trip. She bought 15 gallons of gasoline for $1.68 per gallon and 12 gallons at a price of $1.76 per gallon. She filled her tank once on the way back with 16 gallons at $1.65 per gallon. What was the average fuel cost per gallon on Maggie’s trip? Instead of writing the entire question, summarize the important details! Stats

15. September 17, 2013 Simplify: Keystone

16. September 19, 2013 Evaluate: Keystone

17. September 19, 2013 Bob had three carries of 8 yards each and five carries of 6 yards each in a recent football game. What was his rushing average (average yards per carry)? Stats

18. September 20, 2013 Evaluate: Keystone

19. September 20, 2013 A truck was able to average only 40 mph for the first four hours of a delivery route. How long must the driver travel at a speed of 55 mph to average 50 mph for the trip? Stats

20. September 23, 2013 Evaluate: Keystone

21. September 23, 2013 Juan says that if the standard deviation of a list is zero, then all the numbers on the list are the same. Is Juan correct? If so, briefly explain why. If not, give a counterexample. Stats

22. September 24, 2013 Evaluate: Keystone

23. September 24, 2013 Would it be appropriate to say that a distribution with a standard deviation of 10 centimeters is more dispersed than a distribution with a standard deviation of 5 inches? Support your position. Stats

24. September 25, 2013 Simplify the following: Keystone

25. September 25, 2013 A set of data has a standard deviation of 9. Seventeen is added to each of the original scores in the set of data. What is the variance and standard deviation of the new set of data? Stats

26. September 26, 2013 Simplify the following: Keystone

27. September 27, 2013 Simplify the following: Keystone

28. September 30, 2013 Keystone

29. September 30, 2013 Summarize the question! Stats

30. October 1, 2013 Evaluate: Keystone

31. October 1, 2013 Using your calculator, find the mean, median, variance, and standard deviation for the following: 12, 15, 6, 18, 11, 19, 22, 23, 24, 26, 5, 17, 21, 32, 40 Mean: Median: Standard deviation: Variance: Stats

32. October 2, 2013 Using your calculator, find the mean, median, variance, and standard deviation for the following: 13, 2, 5, 6, 7, 8, 1, 3, 5, 6, 15, 17, 13, 14, 15, 13, 15, 2, 1, 3, 5, 3, 5, 6, 10, 6 Mean: Median: Standard deviation: Variance: Stats

33. October 3, 2013 Using your calculator, find the mean, median, variance, and standard deviation for the following: 17, 21, 25, 24, 23, 21, 19, 18, 24, 23, 22, 21, 25, 24, 22, 23, 24, 18, 19, 11, 15, 16, 17, 18, 24, 23, 22, 20, 22 Mean: Median: Standard deviation: Variance: Stats

34. October 4, 2013 Round the following numbers to the hundredths.7.14120.89612.1387 Keystone & Stats

35. October 7, 2013 A band just recorded a new album with 9 tracks. The shortest song on the album is 2 minutes and 21 seconds. The longest song on the album is 3 minutes and 43 seconds. What is a reasonable estimate for the total time of the album? A.54 minutes B.27 minutes C.8 minutes D.3 minutes Keystone

36. October 8, 2013 When Sammy goes to lunch, he can buy a sandwich for $1.16 and a soft drink for $1.89. Which is a reasonable amount that Sammy would spend on 50 sandwiches and 55 soft drinks? A.$310 B.$260 C.$160 D.$110 Keystone

37. October 8, 2013 Describe the different between a percentile and a percentage. A percentage score indicates the proportion of a test that someone has completed correctly. A percentile score tells us what percent of other scores are less than the data point we are investigating. Stats

38. October 9, 2013 Stephanie is trying to estimate the cost of gift baskets that she is going to give her 4 friends. She knows that baskets cost $6.63 each, candles cost $1.63 each, and candy bars cost $0.94 each. She is also going to get everyone a restaurant gift card for $5.00. Each basket will include the following: 1 basket 2 candles 3 candy bars 1 gift card Estimate how much money she will spend on all the gift baskets. A. $15.00 B. $76.00 C. $60.00 D. $19.00 Keystone

39. October 10, 2013 Keystone

40. October 10, 2013 Chloe scored 80% on her English test. There are 249 other students who took the same exam. No one received the same score as she did, but 113 students received a lower score. What is her percentile ranking. What percentage of students scored better than Chloe? Stats

41. October 11, 2013 Keystone

42. October 11, 2013 Find the median for the following sets of data. 3, 11, 6, 5, 4, 7, 12, 3, 10 4, 2, 11, 6, 2, 9 Stats

43. October 14, 2013 Keystone

44. October 14, 2013 3, 11, 6, 5, 4, 7, 12, 3, 10 4, 2, 11, 6, 2, 9 Find Q 1 and Q 3 for the following sets of data. Stats

45. October 15, 2013 Keystone

46. October 15, 2013 Suppose you received the highest score on an exam. Your friend scored the second-highest score, yet you both were in the 99 th percentile. How can this be? Stats

47. October 16, 2013 Keystone

48. October 16 (or 17), 2013 The average 20- to 29-year-old man is 69.6 inches tall, with a standard deviation of 2.7 inches, while the average 20- to 29-year-old woman is 64.1 inches tall, with a standard deviation of 2.6 inches. Who is relatively taller, a 75-inch man or a 70-inch woman? Stats

49. October 17, 2013 Find the GCF. Keystone

50. October 18, 2013 Factor out the GCF. Factor completely. Keystone

51. October 21, 2013 Factor completely. Keystone

52. October 21, 2013 Find the mean, median, mode, range, variance and standard deviation for the following set of data USING YOUR CALCULATOR! Stats 9, 24, 8, 9, 5, 8, 9, 10, 8, 10, 15, 2, 3, 18, 20, 1, 17, 2, 19, 3 Yes…. Your calculator! If you do not have it, GO GET IT RIGHT NOW!!! You don’t have to ask today, just go! You will not be going later in the period.