Neural Sync Active
May 2026 - Statistics I - Week 4 - Week 4 - Graded Assignment 4
Registry Synced
May 2026 - Statistics I - Week 4 - Week 4 - Graded Assignment 4
764 words
4 min read
Week 4 - Graded Assignment 4
Course: May 2026 - Statistics I
Week 4 - Graded Assignment 4 WEEK 4 Due Jul 15, 2026 11:59 PM IST Overdue
Introduction
Week 4 - Graded Assignment 4Week 4
15th Jul
Week 4 - Graded Assignment 4
Week 4
Due Jul 15, 202611:59 PM ISTOverdue
Question 1 / 15
0 marks
Are you able to see 7 dealer's location and the sales of OnePlus and BBK Electronics?
Answer is Correct Score: 0 / 0
Options:
- A. Yes ✅
- B. No
Question 2 / 15
1 mark
What is the population standard deviation of sales of OnePlus?(Enter the answer correct to 2 decimal accuracy)
Your Answer:
(Not answered)Question 3 / 15
1 mark
What is the sample standard deviation of sales of BBK Electronics?(Enter the answer correct to 2 decimal accuracy)
Your Answer:
(Not answered)Question 4 / 15
1 mark
What is the sample co-variance between the sales of OnePlus and BBK Electronics?(Enter the answer correct to 2 decimal accuracy)
Your Answer:
(Not answered)Question 5 / 15
1 mark
What is the correlation coefficient between the sales of OnePlus and BBK Electronics?(Enter the answer correct to 2 decimal accuracy)
Your Answer:
(Not answered)Question 6 / 15
1 mark
What can you say about the linear relationship between the sales of OnePlus and BBKElectronics?(More than one option can be correct)
Answer is Wrong Score: 0 / 1
Options:
- A. Moderate
- B. Negative
- C. Positive ❌ (your answer)
- D. Strong ❌ (your answer)
- E. Absence of linear relationship
- F. Weak
Question 7 / 15
1 mark
Is the sales of OnePlus strongly influenced by the location of dealer?
Answer is Correct Score: 1 / 1
Options:
- A. No ✅
- B. Yes
Question 8 / 15
0 marks
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)
Your Answer:
(Not answered)Question 9 / 15
1 mark
What proportion of total students are dull? (Enter the answer correct to 2 decimal accuracy)
Your Answer:
(Not answered)Question 10 / 15
1 mark
What proportion of total students are in poor economic conditions? (Enter the answer correct to 2 decimal accuracy)
Your Answer:
(Not answered)Question 11 / 15
1 mark
What proportion of students of good economic conditions are borderline? (Enter the answer correct to 2 decimal accuracy)
Your Answer:
(Not answered)Question 12 / 15
1 mark
What percentage of average students are in good economic conditions? (Enter the answer correct to 2 decimal accuracy)
Your Answer:
(Not answered)Question 13 / 15
1 mark
What percentage of bright students are in poor economic conditions? (Enter the answer correct to 2 decimal accuracy)
Your Answer:
(Not answered)Question 14 / 15
1 mark
Let A and B represent the monthly sales (in rupees) of two salespersons, Anjali and Bharat, recorded over six consecutive months. It is known that in each of these months, Bharat’s sales were exactly 1000 rupees more than twice the amount Anjali sold.
Based on this information, which of the following statements about the correlation coefficient between their monthly sales is necessarily true?
Answer is Correct Score: 1 / 1
Options:
- A. The correlation coefficient between A and B is equal to 0.
- B. The correlation coefficient between A and B is greater than 0 but less than 1.
- C. The correlation coefficient between A and B is equal to 1. ✅
- D. The correlation coefficient cannot be determined without the exact sales figures.
Question 15 / 15
1 mark
An analyst recorded the daily screen time (in minutes) and the sleep duration (in hours) for 6 individuals.![image]()
Based on the data and context, which of the following statements is/are true?
Answer is Partially Correct Score: 0.5 / 1
Options:
- A. There is a negative correlation between the daily screen time and sleep duration. ✅
- B. The correlation coefficient between the daily screen time and sleep duration is exactly −1.
- C. The scatter plot of the data would display a negative trend.
- D. The population covariance between the daily screen time and sleep duration is −28.