Determine if the statement is a proportion.I. 
II. 
A. I is a proportion, II is not a proportion.
B. I is not a proportion, II is a proportion.
C. I and II are both proportions.
D. Neither I nor II are proportions.
Answer: C
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Can the number of A defects or the number of B defects be described using the normal distribution?
A. The second is normal, but the first is not normal. B. Both are normal. C. The first is normal, but the second is not normal. D. Neither is normal.
Write the first four terms of the geometric sequence.a = 160, r > 0, a5 = 10
A. 160, -80, 40, -20 B. 160, 80, 40, 20 C. 80, 40, 20, 10 D. 160, 80, 40, 10
Find the median of the random variable x with the probability density function defined on the indicated interval I. The median of x is defined to be the number m such that 
. Observe that half of the x-values lie below m and the other half lie above m.
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Fill in the blank(s) with the appropriate word(s).
Write out the first five terms of the sequence.an = n2 - n
A. 1, 4, 9, 16, 25 B. 2, 6, 12, 20, 30 C. 0, 3, 8, 15, 24 D. 0, 2, 6, 12, 20