5) Annual precipitation depths measured at 2 nearby flow observation stations are given below. a) Calculate the correlation coefficient between the precipitation values at two stations. b) Draw the regression line. Show the values of the two stations and the regression formula on the graph. Years P1 (cm) P2 (cm) 1 2 4 6. 7 8 10 11 12 13 14 15 16 172 210 244 155 168 190 174 212 137 220 172 258 160 147 112 162 195 252 241 156 200 245 251 222 211 266 214 215 205 97 141 206

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Fundamentals of Trigonometric Identities

Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.