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Discussion forum for Statistics for Data Science I

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Dear Candidates

Welcome to the course!!

We were facing some limit issue in the google groups, hence we have created this new group. Request all to use this group for posting further queries.

For accessing your previous post , please visit the old group link https://groups.google.com/a/onlinedegree.iitm.ac.in/group/ma1002-discuss

Thank you!!

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John Cherian, Statistics 1 Support 13

11/20/20

Week 4 Activity Question 8

Thank You sir. On Friday, November 20, 2020 at 1:14:51 PM UTC+5:30 stats1-...@onlinedegree.iitm.ac.in

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ActivityQuestion

Week 4 Activity Question 8

Thank You sir. On Friday, November 20, 2020 at 1:14:51 PM UTC+5:30 stats1-...@onlinedegree.iitm.ac.in

11/20/20

Rachit soni, … Statistics 1 Support 14

11/20/20

Doubt related Bi serial correlation

Thank you for the clarification. On Fri, 20 Nov 2020, 13:08 Statistics 1 Support 1, <stats1-

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Doubt related Bi serial correlation

Thank you for the clarification. On Fri, 20 Nov 2020, 13:08 Statistics 1 Support 1, <stats1-

11/20/20

Arush Garg, Statistics 1 Support 12

11/20/20

Hi, Check the row relative frequencies, you will come to know that customers who visit Flipkart are

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ActivityQuestion

Hi, Check the row relative frequencies, you will come to know that customers who visit Flipkart are

11/20/20

Muhammed Aslam A, Statistics 1 Support 12

11/19/20

wk 4 qstn2 practice assignment doubt

Hello Aslam, In this question, we have to calculate the correlation coefficient. For that, we need to

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wk 4 qstn2 practice assignment doubt

Hello Aslam, In this question, we have to calculate the correlation coefficient. For that, we need to

11/19/20

Priyanshu Singh, Statistics 1 Support 12

11/18/20

q2 mock test very imp

Hello Priyanshu, No, we will not use (n-1) in the denominator while calculating the sample mean.

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q2 mock test very imp

Hello Priyanshu, No, we will not use (n-1) in the denominator while calculating the sample mean.

11/18/20

Sana Aamir, Statistics 1 Support 12

11/18/20

Hello, If it is there in the lectures, you are expected to know how to calculate. Thanks Nikita

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Hello, If it is there in the lectures, you are expected to know how to calculate. Thanks Nikita

11/18/20

Nandni Gupta, … Sanchi Priyanshu3

11/18/20

population and sample variable

so nikita please clarify , everytime in any formula of variance,sd,corelation, covariance we have to

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population and sample variable

so nikita please clarify , everytime in any formula of variance,sd,corelation, covariance we have to

11/18/20

R, … Statistics 1 Support 15

11/18/20

L4.4 Real Estate Example

Hello, In the example given in lecture 4.4, we are interested in knowing the price of the house

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L4.4 Real Estate Example

Hello, In the example given in lecture 4.4, we are interested in knowing the price of the house

11/18/20

San Izaan, Statistics 1 Support 12

11/17/20

week 4 tutorial2

Hi, Since you are going to square them up, hence negative signs will not make any difference there.

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week 4 tutorial2

Hi, Since you are going to square them up, hence negative signs will not make any difference there.

11/17/20

Utkarsh Gaurav, Statistics 1 Support 13

11/17/20

Difference between the use of Pie and Stacked Chart

so can we conclude that pie chart is for 1 variable while stacked bar chart is for two variable

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Difference between the use of Pie and Stacked Chart

so can we conclude that pie chart is for 1 variable while stacked bar chart is for two variable

11/17/20

Parvatha varthini Sundaram, … Statistics 1 Support 13

11/17/20

Hi, The slope of the line is given negative that means when values on the x-axis increases, values on

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ActivityQuestion

Hi, The slope of the line is given negative that means when values on the x-axis increases, values on

11/17/20

ayesha gupta, Statistics 1 Support 13

11/17/20

Doubt in Activity 4.7

Thanks a lot. On Tue, Nov 17, 2020 at 12:21 PM Statistics 1 Support 1 <stats1-support1@

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ActivityQuestion

Doubt in Activity 4.7

Thanks a lot. On Tue, Nov 17, 2020 at 12:21 PM Statistics 1 Support 1 <stats1-support1@

11/17/20

Tejasvi Hegde, … Statistics 1 Support 14

11/13/20

Lecture 4.7 correlation coefficient

Thank you very much to both of you On Friday, November 13, 2020 at 12:02:38 PM UTC+5:30 stats1-...@

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Lecture 4.7 correlation coefficient

Thank you very much to both of you On Friday, November 13, 2020 at 12:02:38 PM UTC+5:30 stats1-...@

11/13/20

gayathri devi, Statistics 1 Support 13

11/11/20

Statistics Relative frequency

Can you please explain, at what situation we can consider row relative frequency and at what

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Statistics Relative frequency

Can you please explain, at what situation we can consider row relative frequency and at what

11/11/20

Anita Garg, Statistics 1 Support 12

11/11/20

Statistics problem

Hi, You can find the correlation coefficient for the above problem, since both are numerical

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Statistics problem

Hi, You can find the correlation coefficient for the above problem, since both are numerical

11/11/20

kartikey agarwal, … Sanjaykumar3

11/10/20

why we use correlation measuring association

Correlation is a measure of linear association between two numerical variables. ie if x and y are two

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why we use correlation measuring association

Correlation is a measure of linear association between two numerical variables. ie if x and y are two

11/10/20

shyam sundar, Statistics 1 Support 12

11/8/20

Week 4 Activity 4 AQ4.3

Hi, It is clearly mentioned in the question that bought items in Flipkart. It is the same as you

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Week 4 Activity 4 AQ4.3

Hi, It is clearly mentioned in the question that bought items in Flipkart. It is the same as you

11/8/20

niladri pradhan, … Anand Iyer3

11/9/20

Row(Column) relative frequency

by plotting them in a 100% column chart, you'll visualize this much better. it's explained

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Row(Column) relative frequency

by plotting them in a 100% column chart, you'll visualize this much better. it's explained

11/9/20

vikas maheswari, Statistics 1 Support 15

11/8/20

Week 4 Activity 2 - 1 to 3 & in let 4.3

It is not written in the question that A intersection B is phi. So how the answers are given by

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Week 4 Activity 2 - 1 to 3 & in let 4.3

It is not written in the question that A intersection B is phi. So how the answers are given by

11/8/20

Jeevana prathibha Karaka, Statistics 1 Support 12

11/8/20

Hi, Take age on X-axis and IQ score on the y-axis and try to find the position of all the points, you

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ActivityQuestion

Hi, Take age on X-axis and IQ score on the y-axis and try to find the position of all the points, you

11/8/20

Mohit Kumar, Statistics 1 Support 13

11/8/20

AQ4.7 - Question 5

Oh. I see. Thank you, Nitin. On Sunday, 8 November 2020 at 12:37:08 UTC+5:30 stats1-...@onlinedegree.

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ActivityQuestion

AQ4.7 - Question 5

Oh. I see. Thank you, Nitin. On Sunday, 8 November 2020 at 12:37:08 UTC+5:30 stats1-...@onlinedegree.

11/8/20

Maebara keiichi, Statistics 1 Support 12

11/8/20

week 4 assignment 1 question 1

Hi, Week 4 does not have assignment 4.1. please be clear which question you are talking about? Thanks

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week 4 assignment 1 question 1

Hi, Week 4 does not have assignment 4.1. please be clear which question you are talking about? Thanks

11/8/20

Ajay Kumar, Statistics 1 Support 12

11/8/20

Hi, A tightly clustered scatter plot means that the value of the correlation coefficient will more

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Hi, A tightly clustered scatter plot means that the value of the correlation coefficient will more

11/8/20

mohan palanisamy, … statistics-16

11/7/20

Statistical thinking week 4

Sir Got it now thanks. Regards Mohan On Sat 7 Nov, 2020, 4:05 PM statistics-1, <statistics-1@

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Statistical thinking week 4

Sir Got it now thanks. Regards Mohan On Sat 7 Nov, 2020, 4:05 PM statistics-1, <statistics-1@

11/7/20

Shagun Tyagi, Statistics 1 Support 12

11/6/20

doubt in statistics-1

R^2 is the square of the correlation coefficient. Basically higher the R^2 value higher the

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doubt in statistics-1

R^2 is the square of the correlation coefficient. Basically higher the R^2 value higher the

11/6/20

SHIVANI SINGHAL, Statistics 1 Support 12

11/6/20

Doubt in week 4-ACTIVITY 2

The number of people who visited B is 1000 but all the people who visited didn't buy an item. The

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Doubt in week 4-ACTIVITY 2

The number of people who visited B is 1000 but all the people who visited didn't buy an item. The

11/6/20

pranoy Radhakrishnan, Statistics 1 Support 12

11/1/20

Hello, Yeah Pranoy, you are right. Thanks Nikita Statistics course support team On Sunday, November 1

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Hello, Yeah Pranoy, you are right. Thanks Nikita Statistics course support team On Sunday, November 1

11/1/20

CG, … Statistics 1 Support 14

11/2/20

Week 4 Practice Assignment

Thank you. On Monday, November 2, 2020 at 10:49:05 AM UTC+5:30, Statistics 1 Support 1 wrote: Hi,

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PracticeAssignment4

Week 4 Practice Assignment

Thank you. On Monday, November 2, 2020 at 10:49:05 AM UTC+5:30, Statistics 1 Support 1 wrote: Hi,

11/2/20

rahulpa...@gmail.com, Statistics 1 Support 12

10/31/20

Association Between categorical vaiables

Hi, Association means how two variables are associated which is the effect on a variable by changing

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Association Between categorical vaiables

Hi, Association means how two variables are associated which is the effect on a variable by changing

10/31/20

Yogendra Shakya, statistics-12

10/30/20

Week 4 understanding Correlation through Covariance and Standard Deviation.

When we talk about covariance, we are talking about the spread of both variables from their mean.

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Week 4 understanding Correlation through Covariance and Standard Deviation.

When we talk about covariance, we are talking about the spread of both variables from their mean.

10/30/20

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