1 2 6 21 ? 445 2676

1 2 8 21 88 445

Select the number that DOES NOT belong to the following group. 1, 2, 6, 21, 446, 2676

What is the missing element in the Sequence represented by the question mark (?) Z1 A, X2D, V6G, T 21 J, R 88 M, P 445 P, ?

underset ?? 1 = 11.2 = 22.3 = 33.4 = 44.5 = 55 .... 11 =

Which set has the greater standard deviation : {1,2,3,4,6} or {441, 442, 443, 444, 445} ?

(4.41 xx 0.16)/(2.1 xx 1.6 xx 0.21) is simplified to

Determine the matrices A and B if they satisfy 2 A + B + [{:(6,-6,0),(-4," "2,1):}]= 0 and A - 2B = [{:(3,2,8),(-2,1,-7):}]