A survey of high school seniors from a certain school district who took the SAT mean score on the mathematics portion was 450 with a standard deviation of 1 16 probability density function the data can be modeled as / () - 11.5 /275 derivative of the model. ()-2V2(x-450) 3,0421 71 (b) 6,084 / 76 3 0420 TE 6.0840 77QUESLIUII O 14 PUITIS I seniors from a certain school district who took the SAT has determined that the ematics portion was 450 with a standard deviation of 1 1.5. By a normal stion the data can be modeled as / (x) = 2645 11.5 \\/2 71 Find the a) f'(x)= _2v2(x-450)@ 13725 3,042 1 O b) '() - -2 2 (x -450)c 2643 6.0840 IT Od 212 - 450)6 245 3.042 / 17 "()- 20 -450) 283 6.0840 7 O el 3,0421 75