stats

Students and Basketball Players Heights (cm) for a group of middle school students and heights of 25 professional basketball players. Students Basketball Players

138 180 138 183 138 185 139 190 141 192 142 195 147 197 147 198 147 198 150 200 150 200 151 202 151 203 151 205 152 205 152 205 152 205 152 207 153 210 153 210 156 210 156 211 157 214 158 215 171 220

Source: Navigating through data analysis in Grades 6�8 (CD ROM). Bright, G. (2003). Reston, VA: NCTM.

Battery Life (Life in hours of two brands of batteries)

Alway Ready Batteries Tough Cell Batteries 96 101

115 91 106 104 115 84

44 103 110 121 115 107 113 97

74 103 115 115 114 140

19 130 86 86

203 100 111 95

95 121 86 121 63 110

110 94 111 97 116 109

92 105 117 112

Life in hours of two brands of batteries

Source: Navigating through data analysis in Grades 6�8 (CD ROM). Bright, G. (2003). Reston, VA: NCTM.

Cholesterol Levels Cholesterol levels both before and after a dietary change from a "standard" American diet to a vegetarian diet. Before changing to a vegetarian diet

After changing to a vegetarian diet

195 146 145 155 205 178 159 146 244 208 166 147 250 202 236 215 192 184 224 208 238 206 197 169 169 182 158 127 151 149 197 178 180 161 222 187 168 176 168 145 167 154 161 153 178 137 137 125

Source: Navigating through data analysis in Grades 9-12 (CD ROM). 2003. Reston, VA: NCTM.

Penny Stacking The table shows the results from one class of students counting the number of pennies each can stack with their dominant hand and nondominant hand. Dominant Hand Nondominant Hand

27 6 52 12 39 14 25 26 25 26 22 26 32 27 52 29 29 31 26 32 35 33 16 34 41 35 30 36 16 36 42 45 47 45 18 46 35 51 30 7 27 17 29 17 37 18 54 19 54 12 18 30 30 28

National Basketball Association (NBA) players to get a rebound or an assist Rebounds/game Assists/game

12.6 12.3 11.4 9.4 11.1 9.3

11 8.8 10.9 8.7 10.9 8.3 10.9 8.2 10.8 7.9 10.8 7.7 10.6 7.7 10.6 7.6 10.6 7.5 10.4 7.3 10.3 7.2

9.9 7.1 9.7 6.9 9.7 6.4 9.6 6.2 9.4 6.1 9.4 5.7

During the 1994-1995 season the top 20 rebounding leaders and the top 20 assist leaders averaged the above numbers

The weight gains (in grams) of 20 chicks after 21 days of feeding a ration

To test a new corn as an animal food, a group of 20 – one day old male chicks were fed a ration containing the new corn. A control group of another 20 chicks are fed a ration that was identical except that contained normal corn. Normal Corn New Corn

380 361 321 447 366 401 356 375 283 434 349 403 402 393 462 426 356 406 410 318 329 467 399 407 350 427 384 420 316 477 272 392 345 430 455 339 360 410 431 326

To test a new corn as an animal food, a group of 20 – one day old male chicks were fed a ration containing the new corn. A control group of another 20 chicks are fed a ration that was identical except that contained normal corn.

# of recycles The city of Douglas is deciding to add a $0.05 bottle deposit to help reduce liter and encourage recycling of products. However, the city of Douglas isn’t sure which material of bottles would be the most beneficial. To help decide, the city of Douglas analyzed the amount of aluminum and plastic recycled in two months. (the following data is in tons) Aluminum Plastic

24 1 39 2 50 1 60 12 69 18 52 6 50 20 45 42 59 21 53 15 54 53 35 13 40 19 50 32 35 24 35 19 49 27 44 40 43 44 42 43 39 73 36 59 59 81 38 80 36 98

The city of Douglas is deciding to add a $0.05 bottle deposit to help reduce liter and encourage recycling of products. However, the city of Douglas isn’t sure which material of bottles would be the most beneficial. To help decide, the city of Douglas analyzed the amount of aluminum and plastic recycled in two months. (the following data is in tons)

Average Ages

The data lists the average ages of players on 15 teams randomly selected from the 2010 teams in the National Football league (NFL) and Major League Baseball (MLB). NFL Average Age MLB average Age

25.8 28.5 26 29

26.3 28 25.7 27.8 25.1 29.5 25.2 29.1 26.1 26.9 26.4 28.9 25.9 28.6 26.6 28.7 26.3 26.9 26.2 30.5 26.8 28.7 25.6 28.9 25.7 29.3