You and your two friends paid the following amounts for a new MP3 player: $165, $210, and $225. A. What is the mean and standard deviation of the population of you and your friends? Mean (round to the nearest penny) Units Required: � =            Standard Deviation (round to the penny) Units Required: � =  B. Complete the table using the sample size of two prices, with replacement. �1,�2 Σ�   165, 165 330 165 165, 210 375 187.5 165, 225 390 195 210, 165 375   210, 210 420   210, 225     225, 165     225, 210     225, 225     C. Complete the Probability Distribution    = #/# 165   187.5   195   210   217.5   225   D. What is the mean and standard deviation of the probability distribution in part C? Mean (round to the nearest penny) Units Required:  =            Standard Deviation (round to the penny) Units Required:  =  E. What is the relationship of the standard deviations in parts A and D?  = 25.49509757/

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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You and your two friends paid the following amounts for a new MP3 player: $165, $210, and $225.

A. What is the mean and standard deviation of the population of you and your friends?

Mean (round to the nearest penny) Units Required: � =           

Standard Deviation (round to the penny) Units Required: � = 

B. Complete the table using the sample size of two prices, with replacement.

�1,�2 Σ�  
165, 165 330 165
165, 210 375 187.5
165, 225 390 195
210, 165 375  
210, 210 420  
210, 225    
225, 165    
225, 210    
225, 225    

C. Complete the Probability Distribution

   = #/#
165  
187.5  
195  
210  
217.5  
225  

D. What is the mean and standard deviation of the probability distribution in part C?

Mean (round to the nearest penny) Units Required:  =           

Standard Deviation (round to the penny) Units Required:  = 

E. What is the relationship of the standard deviations in parts A and D?

 = 25.49509757/

 
 
 
 
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