Chapter 1 Application Questions Pages 10-11 #s 11,13,16,17,18,20

# Chapter 1 Application Questions Pages 10-11 #s 11,13,16,17,18,20

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Shawnae Cristobal Statistics Professor DeNike September 5, 2008 Box #283 Chapter 1 Application Questions: Pages 10-11 #s 11,13,16,17,18,20 11. a. What proportion is 5 out of 15? b. What proportion of 50 is 10? c. One in a thousand equals what proportion? a. 5/15=.33 b. 10/50=.20 c. 1/1000=.001 13. Transform each question in number 11 to a percent. a. .33(100)=33% b. .20(100)=20% c. .001(100)=.1% 16. For Q=(X+Y)(X²+Y²), find the value of Q when X=3 and Y=5. Q=(3+5)(3²+5²) Q=(8)(9+25) Q=(8)(34) Q=272 17. Using the formula in Question 16, find Q when X=8 and Y=-2. Q=(8+(-2))(8²+(-2)²)

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Unformatted text preview: Q=(6)(64+4) Q=(6)(68) Q=408 18. For X=14 and Y=4.8, find D: D=((X-Y)/Y)(√X) D=((14-4.8)/4.8)(√14) D=(14)(3.741657387) D=52.38 20. Of the 40 students in a gym class, 13 played volleyball, 12 ran track (4 of whom did a push up), and the remainder were absent. a. What proportion of the class ran track? b. What percentage played volleyball? c. What percentage of the runners did a push up? d. What proportion of the class was absent? a. 12/40=.30 b. 13/40=.325 .325(100)=32.5% or 33% c. 4/12=.33 .33(100)=33% d. 15/40=.375 or .38...
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## This note was uploaded on 04/13/2010 for the course BUSINESS 15643 taught by Professor Schilz during the Spring '10 term at École Normale Supérieure.

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Chapter 1 Application Questions Pages 10-11 #s 11,13,16,17,18,20

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