The table below gives the average weight (in kilograms) of certain people ages 1
–20
. Use Excel to find the best fit linear regression equation, where age is the explanatory variable. Round the slope and intercept to two decimal places.
Age
Weight
Age Weight
1 9.2
2 12.0
3 14.2
4 15.4
5 17.9
6 19.9
7 22.4
8 25.8
9 28.1
10 31.9
11 36.9
12 41.5
13 45.8
14 47.6
15 52.1
16 53.5
17 54.4
18 56.7
19 57.1
20 58.0
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