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Statistics week 4 graded assignment Complete  Solutions Are Discussed In This Blog We Hope This Might Help You All In Matching Answers . Or For Some Others Reasons Not Able To Complete Graded Assignments 

The phone brands OnePlus, Vivo and Oppo are owned by BBK Electronics. Table 4.1.G represents the data for the sales (in Lakhs) of OnePlus and BBK Electronics by different dealers in Chennai and Punjab in the year 2010.

 

Dealer’s LocationOnePlusBBK Electronics
Chennai610
Punjab210
Chennai111
Punjab111
Chennai210
Punjab111
Chennai616
Table Q4.1.G: Sales Data

Are you able to see 7 dealer’s location and the sales of OnePlus and BBK Electronics?

 
2. What is the population standard deviation of sales of OnePlus?(Enter the answer correct to 2 decimal accuracy)
2.11
 
3.What is the sample standard deviation of sales of BBK Electronics?(Enter the answer correct to 2 decimal accuracy)
2.14
 
4.What is the sample co-variance between the sales of OnePlus and BBK Electronics?(Enter the answer correct to 2 decimal accuracy)
2.42
 
5.What is the correlation coefficient between the sales of OnePlus and BBK Electronics?(Enter the answer correct to 2 decimal accuracy)
0.49
 
 
 6.What can you say about the linear relationship between the sales of OnePlus and BBKElectronics?(More than one option can be correct)
 
7. Is the sales of OnePlus strongly influenced by the location of dealer?
 
8.  651 college students are classified according to their intelligence and economic conditions and the results are as follows.

 

Economic ConditionsIntelligence level
 BrightAverageDullBorderline
Good509364127
Poor59908880
Table Q4.2.G: Intelligence Level and Economic Conditions

 

Are you able to see all the eight values in a contigency Table Q4.2.G?(Type 0 for No and type 1 for Yes)

1

9. What proportion of total students are dull? (Enter the answer correct to 2 decimal accuracy)

 0.23

10. What proportion of total students are in poor economic conditions? (Enter the answer correct to 2 decimal accuracy)

0.48

11. What proportion of students of good economic conditions are borderline? (Enter the answer correct to 2 decimal accuracy)

0.38

 

12. What percentage of bright students are in poor economic conditions? (Enter the answer correct to 2 decimal accuracy)

54.12

13.  What percentage of average students are in good economic conditions? (Enter the answer correct to 2 decimal accuracy)

50.81

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