Statistics for Business and Economics
Statistics for Business and Economics
8th Edition
ISBN: 9780132745659
Author: Paul Newbold, William Carlson, Betty Thorne
Publisher: PEARSON
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Chapter 1.5, Problem 36E

(a)

To determine

Construct a relative cumulative frequency distribution.

(b)

To determine

Determine the percentage of the internet visitors who were under 45 years of age.

(c)

To determine

Determine the percentage of the internet visitors who were at least 35 years of age.

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You are given the following dataset from a sample of the population.  Superhero Number of Villains Captured Number of Losses  Average Hours of  Sleep Spiderham 30 9 12 Alligator Loki 50 1 23 Iron Man 20 8 6 Phil Coulson 18 2 8 Yelena Belova 25 5 2 Round all answers to 2 decimal places. IE: 3.567 = 3.57 A. What kind of dataset is this?  Answer either Panel, Time series, or cross sectional B. Calculate the average number of villains captured in this sample.   C. Calculate the variance of the number of villains captured in this sample.     D. Calculate the correlation between the number of villains captured and average hours of sleep  . If answer is negative, include negative sign. E. Calculate the sample covariance between the average number of losses and average hours of sleep  . If answer is negative, include negative sign.
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