4. Population growth in imaginary districts is described by the following table. Use the least- squares polynomial of degree 2 to predict populations for the year 2000. Districts District 1 1950 1960 1965 554 801 873 84 94 99 112 122 135 143 148 152 District 4 166 199 214 227 239 District 5 2504 3014 3324 3683 4076 1970 1975 1980 1983 1984 1102 1183 1225 1239 984 104 District 2 District 3 117 119 119 154 154 154 252 259 261 4453 4685 4763

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