mdm12Section2_R_OddSolutionsFinal

mdm12Section2_R_OddSolutionsFinal - Q1 Q5-9 Q3 Q11-19...

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Q1 Q3 Q5-9 Q11-19 CHAPTER 2 Review of Key Concepts, pp. 151–153 Solutions to Odd Number Problems Sales Tally Frequency Cumulative Frequency 3 / 1 1 4 / 1 2 5 //// 4 6 6 //// 5 11 7 /// 3 14 8 / 1 15 9 / 1 16 1. a) b) c) Top
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3. a) Categorical data: because each game forms a category b) Game Frequency Pictionary® 10 Chess 5 Trivial Pursuit® 8 MONOPOLY® 3 Balderdash® 6 Other 4 c) A circle graph is used because it gives a visual representation of the frequencies of different games. Top
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5. Answers may vary slightly. a) The CPI for coffee was 100 in 1992, about 120 in 1990, and about 148 in 1995. i) Price(1995) = 1.48 5.99 = $8.87 × ii) Price(1990) = 1.20 5.99 = $7.19 × b) The CPI for rent was about 95 in 1990 and about 112 in 2000. 112 Rent(2000) = 550 95 = $648 × c) The CPI for vegetables was about 90 in 1996 and about 105 in 2000. 105 Price(2000) = 1.49 90 = $1.74 × 7. a) Use multi-stage sampling. b) Choose six classes randomly. Then, use systematic sampling to select five students from each class. 9. a) Measurement bias; children may not have valid opinions on the eating of junk food. The bias comes from the sampling technique.
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mdm12Section2_R_OddSolutionsFinal - Q1 Q5-9 Q3 Q11-19...

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