Tell whether the relation is a function.
2 answers:
Answer:
It is not a function.
Step-by-step explanation:
A function is a relation in which each input x has only one output y.
One visual way to tell the difference is to plot the relation and use the vertical line test.
If a vertical line for a given value of x passes through more than one point, the relation is not a function.
We see in the diagram that the line x = -3 includes (-3,0) and (-3,4), so the relation is not a function.
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Answer:
Step-by-step explanation:
Given that A be the event that a randomly selected voter has a favorable view of a certain party’s senatorial candidate, and let B be the corresponding event for that party’s gubernatorial candidate.
Suppose that
P(A′) = .44, P(B′) = .57, and P(A ⋃ B) = .68
From the above we can find out
P(A) =
P(B) =
P(AUB) = 0.68 =
a) the probability that a randomly selected voter has a favorable view of both candidates=P(AB) = 0.30
b) the probability that a randomly selected voter has a favorable view of exactly one of these candidates
= P(A)-P(AB)+P(B)-P(AB)
c) the probability that a randomly selected voter has an unfavorable view of at least one of these candidates
=P(A'UB') = P(AB)'
=