Or, the distribution function of X
F(x)=P{X less than or equal to x}
a<=b, {X<=a} is contained in the event {X<=b}
F(x) is nondecreasing.
Or, the distribution function of X
F(x)=P{X less than or equal to x}
a<=b, {X<=a} is contained in the event {X<=b}
F(x) is nondecreasing.
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