Concept explainers
To find: the probability that both conclusion are true.
Answer to Problem 25PSB
The probability that both conclusions are true is 1.
Explanation of Solution
Given information:
Formula used:
Properties of parallelogram.
Calculation:
In parallelogram
a
b
c
d
Therefore, a, b, c, d all are true.
Total number of possible ways that we can select two out of a, b, c, d is
The number of possible ways that we can select two out of a, b, c, d, which are true is
Let
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