Question

Word Online Column Row 159.26 463.54 161.02 483.55 124.84 575.85 3 3 49.3 53.8 56.9 4147.71 567.66 60.6 2 65.2 193.22567.81 306.68 616.68 612.56720.15 460.03 782.62 375.67 728.84 424.35 979.52 360.48 977.33 72.6 90.9 96.5 99.6 103.9 10 2 1

Answer 1

let us consider i = 1,2,3,4.........11(rows)

and j=1,2,3 (columns)

and X_i,j = the i^th element of j^th column

1) X_3,3=3rd element of 3rd column

X_3,3 =56.9

2) $\sum_{i=3}^{10} = X_{3,2}+X_{4,2}+..............+X_{10,2}$

= 575.85+567.66+.........+977.33

=6516.46

3) $\sum_{j=2}^{3} = X_{3,2}+X_{3,3}$

=575.85+56.9

=632.75