Solve the problem.
A. D2.
B. Z1.
C. D1.
D. Z2.
E. none of these
Answer: D
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Find the indicated probability.A relative frequency distribution is given below for the size of families in one U.S. city. SizeRelative frequency20.44230.22740.19650.09260.0267+0.017A family is selected at random. Find the probability that the size of the family is less than 5. Round your answer to three decimal places.
A. 0.423 B. 0.865 C. 0.515 D. 0.092
Complete the sentence.The absolute value of -89 is _____.
A. 0 B. 89 C. -178 D. -89
In the following sequence of regular pentagons, each toothpick represents one unit. Determine the perimeter if we arrange n such regular pentagons in a row.
Simplify the expression. Assume all variables represent nonzero real numbers.(54)3
A. 512 B. 257 C. 2512 D. 57