Question

In the given figure (not drawn to scale), a circle with
centre 0 passes through A, B, C and D. PDOB is a straight
line and PAT is a tangent to the circle. If ZAOB = 112
and AD = DC, then find ZAPO and ZACB
respectively
B
O
1122
D
A
P​

Answer 1

Answer:

Employment 11 14 17 Total 1 18 56 89 163 0 13 16 8 37 Total 31 72 97 200 What is the variance of employment? Give your answer to two decimal places.