In a contingency table, when the distribution of one variable is the same for all categories of another, we say the variables are
A、A. separate.
B、B. independent.
C、C. distinct.
D、D. dependent.
A、A. separate.
B、B. independent.
C、C. distinct.
D、D. dependent.
The word "contingency" (Line 1, Paragraph 9) can be best replaced by
A.disasters.
B.possibilities.
C.emergencies.
D.happenings.
Why are laws formed?
A.laws are made before a contingency
B.Laws are made after a contingency
C.A contingency always happens before a law is approved and passed
D.laws are passed to stand the 'test of time' and are applicable to other similar circumstances in the future
A.Contingency;
B.Emergency;
C.A or B;
D.not A nor B.
Contingency planning should include all but which of the following?
A The development of a contingency allowance determined by combining (layering) various estimate segments to form. larger estimate segments.
B the development of schedule alternatives and work-around
C the management of a contingency budget
D an assessment of project shut-down liabilities.
E A and C
A.univariate data.
B.qualitative data.
C.bivariate data.
D.frequency data.
Data were collected on 100 students regarding their class and major. The data are summarized in the following contingency table:What is the probability of randomly selecting a sophomore or an undeclared student?
A、0.19
B、0.59
C、0.40
D、0.29
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