Question

define null relation​

Answer 1

Answer:

The null relation is a relation R in S to T such that R is the empty set: R⊆S×T:R=∅ That is, no element of S relates to any element in T: R:S×T:∀(s,t)∈S×T:¬sRt.

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

In statistics a null hypothesis is a proposition exists between population and phenomena. it is the hypothesis which is presumed true-unless statistical evidence indicates otherwise