Please help me with this math
1 answer:
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Answer:
B
Step-by-step explanation:
y × y =
y × -3 = -3y
Answer:
Te correct answer is c) 0.750
Step-by-step explanation:
Lets call:
A = {Allan wins the election}
B = {Barnes wins the election}
MA = {the model predicts that Allan wins}
MB = {the model predicts Barnes wins}
We know that the model has a 50:50 chance of correctly predicting the election winner when there are two candidates. Then:
P(MA | A) = 0.5 = P(MA | B)
P(MB | B) = 0.5 = P(MB | A)
The prior probability P(A) given by the election researcher is 0.75
We must find the posterior probability P(A | MB)
We use Bayes theorem:
We used the result:
Explanation:
The two equations are and
To determine why the two equations are equivalent, let us solve the equation.
Consider solving the equation , we get,
Adding 13 on both sides, we get,
Consider solving the equation , we get,
Adding 37 on both sides, we get,
Thus, when solving both the equations, the value of H is equal.
Since, the value of H is equal, the equations and
are equivalent equations.
The meaning of the solution:
A value of a variable which makes the equation true is called a solution.
Here the value of the variable H is 197. Let us substitute the value in the equations and
to determine whether it makes the equation true.
Let us substitute in
, we get,
Hence, is true solution.
Also, let us substitute in
, we get,
Hence, is true solution.