Algebra 2/trigonometry - Worksheet Page 6
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28Use this space for
2
computations.
13 What is the sum of the roots of the equation
3x
6x
2
0?
2 __
2 __
(1)
(3)
3
3
(2) 2
(4)
2
14 The scores of 1000 students on a standardized test were normally
distributed with a mean of 50 and a standard deviation of 5. What is
the expected number of students who had scores greater than 60?
(1) 1.7
(3) 46
(2) 23
(4) 304
2
10x
____
15 If T
, then log T is equivalent to
y
(1) (1
2log x)
log y
(3) (1
2log x)
log y
(2) log(1
2x)
log y
(4) 2(1
log x)
log y
16 Which statement regarding correlation is not true?
(1) The closer the absolute value of the correlation coefficient is to
one, the closer the data conform to a line.
(2) A correlation coefficient measures the strength of the linear
relationship between two variables.
(3) A negative correlation coefficient indicates that there is a weak
relationship between two variables.
(4) A relation for which most of the data fall close to a line is
considered strong.
[6]
Algebra 2/Trigonometry – Jan. ’16
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