16. H 57 L 12 oe oe Range 57 12 45 oe  oe Width 45 6 7.5 or 8 oe ƒ oe 16. continued Limits Boundaries f rf 12 - 19 11.5 - 19.5 7 0.175 20 - 27 19.5 - 27.5 17 0.425 28 - 35 27.5 - 35.5 10 0.25 36 - 43 35.5 - 43.5 4 0.10 44 - 51 43.5 - 51.5 1 0.025 52 - 59 51.5 - 59.5 40 1.000 1 0.025 crf Less than 11.5 0.000 Less than 19.5 0.175 Less than 27.5 0.600 Less than 35.5 0.850 Less than 43.5 0.950 Less than 51.5 0.975 Less than 59.5 1.000 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 11.5-19.5 19.5-27.5 27.5-35.5 35.5-43.5 43.5-51.5 51.5-59.5 Grams relative frequency 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 7.5 15.5 23.5 31.5 39.5 47.5 55.5 63.5 Grams relative frequency 0 0.2 0.4 0.6 0.8 1 1.2 11.5 19.5 27.5 35.5 43.5 51.5 59.5 Grams cumulative relative frequency The histogram is positively skewed. Full file at

Chapter 2 - Frequency Distributions and Graphs 12 17. Boundaries rf -0.5 - 27.5 0.63 27.5 - 55.5 0.20 55.5 - 83.5 0.07 83.5 - 111.5 0.00 111.5 - 139.5 0.00 139.5 - 167.5 0.10 167.5 - 195.5 10 0.00 0.0 crf Less than -0.5 0.00 Less than 27.5 0.63 Less than 55.5 0.83 Less than 83.5 0.90 Less than 111.5 0.90 Less than 139.5 0.90 Less than 167.5 1.00 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 -0.5- 27.5 27.5- 55.5 55.5- 83.5 83.5- 111.5 111.5- 139.5 139.5- 167.5 167.5- 195.5 Air Quality (Days) - 2002 relative frequency 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 13.5 41.5 69.5 97.5 126 154 182 Air Quality (Days) - 2002 relative frequency 0 0.2 0.4 0.6 0.8 1 1.2 -0.5 27.5 55.5 83.5 112 140 168 196 Air Quality (Days) - 2002 cumulative relative frequency 18. 0 5 10 15 20 2.25 - 2.95 2.95 - 3.65 3.65 - 4.35 4.35 - 5.05 5.05 - 5.75 5.75 - 6.45 Seconds frequency 0 5 10 15 20 2.6 3.3 4 4.7 5.4 6.1 Seconds frequency 0 10 20 30 40 50 2.25 2.95 3.65 4.35 5.05 5.75 6.45 Seconds fre quency Based on the histograms, the older dogs have longer reaction times. Also, the reaction times for older dogs is more variable. 19. Limits Boundaries X f m 22 - 24 21.5 - 24.5 23 1 25 - 27 24.5 - 27.5 26 3 28 - 30 27.5 - 30.5 29 0 31 - 33 30.5 - 33.5 32 6 34 - 36 33.5 - 36.5 35 5 37 - 39 36.5 - 39.5 38 3 40 - 42 39.5 - 42.5 41 20 2 cf Less than 21.5 0 Less than 24.5 1 Less than 27.5 4 Less than 30.5 4 Less than 33.5 10 Less than 36.5 15 Less than 39.5 18 Less than 42.5 20 Full file at

Chapter 2 - Frequency Distributions and Graphs 13 19. continued 0 2 4 6 8 23 26 29 32 35 38 41 Seconds frequency 0 5 10 15 20 25 21.5 24.5 27.5 30.5 33.5 36.5 39.5 42.5 Seconds frequency 20. a. 0 b. 14 c. 10 d. 16 EXERCISE SET 2-3 1. f UCLA 11 Texas A & M 2 Calif. State 1 Arizona 6 Fresno State 1 Oklahoma 1 California 1 Michigan 24 1 1. continued 0 2 4 6 8 10 12 UC L A A r izona Texas A & M C al S t F re sn o St Okla h om a California M i ch ig an School Wins 0 2 4 6 8 10 12 U C LA A r izo n a T e xas A & M Cal St Fre s no S t O kl a homa C a lifo r nia Mic h iga n School Wins 2. f PA 9 VA 7 MA 5 NJ 5 MD 4 NY 4 SC 4 CT 4 NH 3 GA 3 NC 3 DE 3 RI 2 0 2 4 6 8 10 PA VA MA NJ MD NY SC CT NH GA NC DE RI State Delegates 0 2 4 6 8 10 PA VA MA NJ MD NY SC CT NH GA NC DE RI State Delegates Full file at

Chapter 2 - Frequency Distributions and Graphs 14 3. The best place to market products would be to residential (home) users. 0 50 100 150 200 250 300 Homes Lg. Companies Sm. Companies Schools Govt. Agencies Location 0 50 100 150 200 250 300 Schools Govt. Agencies Lg. Companies Sm. Companies Homes Number of computers 4. 0