Round 6,212 to the nearest hundred
2 answers:
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Answer:
{}
Step-by-step explanation:
The given system of equations is;
and
We rewrite the equations in the standard form to get:
We now substitute equation (3) into equation (4) to get:
Group similar terms:
Divide both sides by 2
This implies that:
Therefore the solution set is:
{}
Answer:
41.67% probability that a student has a dog given that they have a cat
Step-by-step explanation:
We use the conditional probability formula to solve this question. It is
In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: having a cat.
Event B: having a dog.
12 of 27 students have a cat:
This means that
5 students who have a cat and a dog.
This means that
What is the probability that a student has a dog given that they have a cat?
41.67% probability that a student has a dog given that they have a cat