complete the tabe

Solution: Complete the table below: P(x) x . P(x) x - H (x - 1)2 (x - U) . P(x) 0.3 4.5 -3.2 10.24 3.072 0.2 3.6 7-0.2 0.04 0.2 3.8 0.8 0.128 0.15 3.24 0.486 0.15 3.8 14.44 2.166 [ x . P (x ) = 2 = ( x - 1 ) 2 . P (x ) = 5.86 18.2 0 = [(x - 1) 2 . P(x) 2.420744 = 2.42 Mean: 18.2 = 18 Variance: 5.86 Standard deviation: 2.42 ~ 2