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
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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## This note was uploaded on 01/23/2012 for the course MATHS MDM-01 taught by Professor Mr.m during the Spring '10 term at Seneca.

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

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