Suppose two random variablesandhave a joint pdfThen what is the marginal probability density function of, i.e.,?
A、
B、
C、
D、
第1题
Suppose two random variablesandhave a joint pdfThen what is the marginal probability density function of, i.e.,?
A、
B、
C、
D、
第2题
Suppose random variablesandhave the joint PDFfor. Letand. What is the joint PDF ofand?
A、
B、
C、
D、
第3题
Supposeandare independent random variables. Letand, thenandcan not be independent.
第4题
Supposeis a random variable, andis a convex function. Then with the existence ofand, we have.
第5题
Supposeand,, then
A、is concave up on.
B、is concave down on.
C、has a critical point.
D、is decreasing on.
第6题
Suppose the joint pdf of random variablesandis. The support is, so we can conclude thatandare independent.
第7题
Suppose the joint pdf of random variablesandis. The support is, so we can conclude thatandare independent.
第8题
Suppose the support of random variableis, and the support of random variableis. If. Thenandare independent.
第9题
Suppose,, and. Then what areandrespectively ?
A、
B、
C、
D、
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