Parcc Algebra Ii Practice Test With Answers '- 2014 Page 6
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23PARCC Algebra II Practice Test – Released April, 2014
Calculator Part (continued)
7.
Circular spinner is divided into five sectors of different colors. A student spun the
arrow on the spinner 200 times and recorded that the arrow stopped on the orange
sector 38 times out of the 200 spins. To test whether the spinner was fair, the
student used a computer to simulate the number of times the arrow stops on orange
in 200 spins of a fair spinner equally divided into five sectors of different colors. The
results of 1,000 trials of the simulation are shown.
Based on the results of the simulation, is there statistical evidence that the spinner
is not fair?
A.
Yes, because 38 was the most frequent outcome.
B.
Yes, because about 8% of the outcomes were 38.
C.
No, because the distribution is approximately normal.
D.
No, because an outcome of 38 or less is not unusual.
( )
( )
8.
The functions
and
are defined by
and
, respectively.
(
) (
)
Rewrite the function ( )
in terms of
.
( )
Enter your answer in the space provided.
Page 6 of 23
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