Question 2 - Page 128 - Data Detective - Chapter 5 Class 7 - Connecting the Dots... (Ganita Prakash II)

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Question 2 - Page 128 Suppose the average height of a newborn is 50 cm. Estimate the average height of young children of ages 1 to 4.Age 1989 1999 2009 2019 5 101.3 100 102.4 101.7 105.1 104 107.1 107.2 6 107.5 106 108.7 107.5 111 109.7 113.1 112.9 7 113 111.4 114.2 112.6 116.2 114.8 118.6 118 8 118.1 116.5 119.2 117.5 120.9 119.6 123.5 122.7 9 122.9 121.7 123.9 122.4 125.2 124.5 128.1 127.6 10 127.5 127.3 128.3 127.8 129.4 129.9 132.6 132.8 11 132.2 133.4 132.8 133.6 133.7 135.7 137 138.6 12 137.7 139 138 139.1 138.9 141.1 142.2 143.8 13 144.2 143.2 144.3 143.1 145.2 145.1 148.4 147.7 14 150.6 146.2 150.5 146.1 151.5 148 154.4 150.4 15 155.4 148.5 155.2 148.4 156.3 150.1 159 152.4 16 158.9 150.1 158.7 150.1 159.9 151.6 162.3 153.8 17 161.3 151.2 161.4 151.3 162.6 152.6 164.6 154.7 18 162.9 151.8 163.2 152.1 164.3 153 166 155.2 19 163.5 151.9 164.2 152.4 165.1 153 166.5 155.2We know a newborn is 𝟓𝟎" " 𝐜𝐦 (at age 0) and a 5 -year-old boy in 2019 is 𝟏𝟎𝟕.𝟏" " 𝐜𝐦. We need to fill in the gap of roughly 𝟓𝟕" " 𝐜𝐦 over 5 years. Children grow very fast when they are babies! Rough Estimate Pattern: Age 0: 50 cm Age 1: ∼75" " cm (Babies grow a lot in the first year!) Age 2: ∼87" " cm Age 3: ∼95" " cm Age 4: ∼102" " cm Age 5: 107.1 cm (Matches our table)