Ch 6 set 1 - These are homework problems for each chapter. Use these for practice because PDF

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These are homework problems for each chapter. Use these for practice because some of these questions are very likely to appear on the exam for Almada....

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Chapter 6 - Practice Problems 1 MULTIPLECHOICE.Choosetheonealternativethatbestcompletesthestatementoranswersthequestion. Usingthefollowinguniformdensitycurve,answerthequestion.

1) Whatistheprobabilitythattherandomvariablehasavaluegreaterthan 6? A) 0.200

B) 0.125

C) 0.250

1) D) 0.375

2) Whatistheprobabilitythattherandomvariablehasavaluelessthan 4? A) 0.625

B) 0.500

C) 0.375

2) D) 0.250

3) Whatistheprobabilitythattherandomvariablehasavaluebetween 2 and 7.6? A) 0.9500

B) 0.5750

C) 0.8250

3)

D) 0.7000

Assumethattheweightlossforthefirstmonthofadietprogramvariesbetween6poundsand12pounds,andisspread evenlyovertherangeofpossibilities,sothatthereisauniformdistribution.Findtheprobabilityofthegivenrangeof poundslost. 4) 4) Morethan10pounds A)

5 6

B)

1 7

C)

2 3

D)

1 3 5)

5) Between7poundsand 10pounds A)

1 2

B)

1 4

C)

2 3

D)

1 3

IfZisastandardnormalvariable,findtheprobability. 6) TheprobabilitythatZliesbetween0and3.01 A) 0.5013

6)

B) 0.9987

C) 0.4987

D) 0.1217

7) TheprobabilitythatZislessthan1.13 A) 0.8907

7)

B) 0.8708

C) 0.8485

D) 0.1292

8) TheprobabilitythatZliesbetween- 1.10and- 0.36

8)

A) 0.4951

B) 0.2237

C) -0.2237

D) 0.2239

9) P(Z...