compute the expected number of arrivals _ P1 X1P1 0.07 0 0.155 0.155 N P 0.235 0.47 0.205 0.615 0.14 0.56 0.105 0.525 0.05 0.3 0.025 0.175 0.01 0.08 2.88 Expected number of arrivals per minute. ) Compute the standard deviation. X1 P1 Squared Deviation Weighted Squared Deviation 0 0.07 8.29 0.580608 0.155 3.53 0.547832 0.235 0.77 0.181984 3.134 Variance 3 0.205 0.01 0.002952 1.77 Standard Deviation 0.14 1.25 0.175616 0.105 4.49 0.471912 0.05 9.73 0.48672 0.025 16.97 0.42436 0.01 26.21 0.262144