Answer:
628.32
Step-by-step explanation:
Answer: (B) 53%
Step-by-step explanation:
Given : The probability that registered voters are Democrats P(D)= 0.60
The probability that of registered voters are Republicans P(R)= 100%-60%=40% =0.4
The probability that the registered voters who are Democrats are expected to vote for Candidate A : P(A|D)=0.75
The probability that the registered voters who are Republicans are expected to vote for Candidate P(A|R) = 0.20
Then by using Law of total probability , the probability of the registered voters are expected to vote for Candidate A :-
![P(A)= P(D)\cdotP(A|D)+P(R)\cdotP(A|R)\\\\=0.60\times0.75+0.40\times0.20\\\\=0.45+0.8\\=0.53=53\%](https://tex.z-dn.net/?f=P%28A%29%3D%20P%28D%29%5CcdotP%28A%7CD%29%2BP%28R%29%5CcdotP%28A%7CR%29%5C%5C%5C%5C%3D0.60%5Ctimes0.75%2B0.40%5Ctimes0.20%5C%5C%5C%5C%3D0.45%2B0.8%5C%5C%3D0.53%3D53%5C%25)
Hence, the percent of the registered voters are expected to vote for Candidate A=53%
Hence, the correct option is (B).
Subtract the minimum data value from the maximum data value to find the data range,so in this case yur data range is
10 - 0.08 = 9.92
so yur answer is 9.92
Answer:
20.20
Step-by-step explanation:
Answer:
x=-15/2 and y=7
Step-by-step explanation:
y=-4x-23
y=-2x-8
Two methods, substitution and elimination. Elimination is the easiest, so you can subtract the equations.
y=-4x-23
-(y=-2x-8)
----------------------
y=-4x-23
-y=2x+8
------------ so solve :)
0=-2x-15
becomes 2x=-15
so x=-15/2
------------------------ plug in x to solve for y
and you get y=7