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inysia [295]
3 years ago
13

What is the solution to f(x)=g(x)?

Mathematics
2 answers:
Alex73 [517]3 years ago
8 0
The answers are x=0 and x=1
ivolga24 [154]3 years ago
7 0
Im pretty sure its 1
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You are to take a multiple-choice exam consisting of 100 questions with 5 possible responses to each question. Suppose that you
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In a population distribution, a score of x=57 corresponds to z=-0.25 and a score of x=87 corresponds to z=1.25. Find the mean an
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Here is dependence between scores and x-values:

Z_i=\dfrac{X_i-\mu}{\sigma},

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2. When i=2, Z_2=1.25,\ X_2=87, then

1.25=\dfrac{87-\mu}{\sigma}.

Now solve the system of equations:

\left\{\begin{array}{l}-0.25=\dfrac{57-\mu}{\sigma}\\ \\1.25=\dfrac{87-\mu}{\sigma}.\end{array}\right.

\left\{\begin{array}{l}-0.25\sigma=57-\mu\\ \\1.25\sigma=87-\mu.\end{array}\right.

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