Suppose that, from a survey of construction labor, the work duration (in number of hours) per day and the average productivity (in terms of efficiency) are obtained as follows: Duration (in hrs) Productivity Number of observations 5 50 4 5 60 1 5 80 15 7 50 13 7 60 22 7 80 11 50 46 60 14 80 11 50 6 11 60 11 80 11 (a) According to above table, calculate the joint distribution of work duration and productivity? (b) What is the marginal distribution of work duration? (c) What is the average working duration in a day? What is the standard deviation?

Suppose that, from a survey of construction labor, the work duration (in number of hours) per day and the average productivity (in terms of efficiency) are obtained as follows: Duration (in hrs) Productivity Number of observations 5 50 4 5 60 1 5 80 15 7 50 13 7 60 22 7 80 11 50 46 60 14 80 11 50 6 11 60 11 80 11 (a) According to above table, calculate the joint distribution of work duration and productivity? (b) What is the marginal distribution of work duration? (c) What is the average working duration in a day? What is the standard deviation?

Name: Suppose that, from a survey of construction labor, the work duration
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Description: Suppose that, from a survey of construction labor, the work duration (in number of hours)per day and the average productivity (in terms of efficiency) are obtained as follows:Duration (in hrs) ProductivityNumber of observations5504560115801575013760

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter1: Functions

Section1.EA: Extended Application Using Extrapolation To Predict Life Expectancy

Problem 6EA

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