chapter42601questions

# chapter42601questions - ASSIGNMENT Chapter 4 Statistical...

This preview shows pages 1–4. Sign up to view the full content.

ASSIGNMENT Chapter 4 Statistical Methods NAME: Taehaeng,Lee 4.4 (6 points) Type of Random Variable . Identify the following random variables as discrete or continuous: a . The amount of flu vaccine in a syringe ANSWER Continuous Random variable b . The heart rate ( number of beats per minute ) of an American male ANSWER Discrete Random variable c . The time it takes a student to complete an examination ANSWER Continuous Random variable d . The barometric pressure at a given location ANSWER Continuous Random variable e . The number of registered voters who vote in a national election ANSWE Discrete Random variable f . You score on the SAT ANSWER Discrete Random variable 4.15 (3 points) A discrete random variable x can assume five possible values: 2,3,5,8, and 10. Its probability distribution is shown here:

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
4.134 (5 points) Reliability of a bridge network . In the journal Networks (May 1995), a team of Chinese university professors investigated the reliability of several capacitates- flow networks. One network examined in the article and illustrated here is a bridge network with arcs a 1 , a 2 , a 3 , a 4 , a 5 , and a 6 . The probability distribution of the capacity x for each of the six arcs is provided in the following table: Arc Capacity x p (x) Arc Capacity x p (x) a 1 3 .60 2 .25 1 .10 0 .05 a 4 1 .90 0 .10 a 2 2 .60 1 .30 0 .10 a 5 1 .90 0 .10 a 3 1 .90 0 .10 a 6 2 .70 1 .25 0 .05 Source: Lin, J., et al. “On reliability evaluation of capacitated-flow network in terms of minimal pathsets.” Networks , Vol. 25, No. 3, May 1995, p.135 (Table 1) a 1 a 2

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 10/14/2010 for the course ECON Econ3201 taught by Professor Jerry during the Spring '10 term at Camden County.

### Page1 / 17

chapter42601questions - ASSIGNMENT Chapter 4 Statistical...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online