Due to printer failure, none of the observed values in following table were printed, but some of the marginal totals were. Is it probable to construct the corresponding table of expected values from information given? If so, make it. If so, construct it. If not, explain the additional information you would need.
Observed Values
1 2 3 Total
A __ __ __ 25
B __ __ __ __
C __ __ __ 40
D __ __ __ 75
Total 50 20 __ 150