LEARNING JOURNAL UNIT 3
(1). LEARNING ACTIVITIES DURING THE UNIT / WEEK 3
My Learning activities for unit 3 are as follows: Every day, I wake up 5:40 am and getting prepare for learning. My study time starts by 6:30am European time before the Uopeople school time starts. During weekly basis, I usually study 16 to 17 hours starting from 28th Thursdays to 5th Wednesdays and this is a routine that had been developed to my life style. I make sure that assignment are done and reviewed before the submission date. However, on 28th June 2017, I read through the Learning Guide, the syllabi and the instructions on unit 3. On 29th June 2017, I studied chapter 3 of the text book and also rated my 3 of my peer’s assignments. On 30th June 2017, I started …show more content…
Secondly, I am more empowered and determined to flow with my studies. After this course, I see myself as an incurable optimist.
2. TASK UNIT 3
Vocabulary and R functions
i. Dispersion – to spread or distribute from a fixed or constant …show more content…
> r r
[1] 0.1666667 0.2666667 0.2000000 0.2333333 0.1333333
The r = f /sum(f) represents the Relative Frequencies of the values of the variable: 5/30 8/30 6/30 7/30 and 4/30
> a
[1] 0 1 2 3 4
> r
[1] 0.1666667 0.2666667 0.2000000 0.2333333 0.1333333
> m m
[1] 1.9
> m sq sq
[1] 18.05 6.48 0.06 8.47 17.64
This represents Squares of Deviations times frequencies
5* (0 -1.9)^2 8* ( 1 - 1.9)^2 6 * ( 2 - 1.9)^2 7 * (3 - 1.9)^2 4* (4-1.9)^2
> ss ss
[1] 50.7
This is the SUM OF SQUARES OF DEVIATIONS
By definition the variance is the sum of squares of deviations divided by the (sample size - 1)
> v v
[1] 1.748276
> sd sd
[1] 1.322224
One thing I noticed is that the sign = and <- sign.
Reference:
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.
Yakir, B. (2011). Introduction to Statistical Thinking (With R, Without Calculus). Retrieved from
(1). LEARNING ACTIVITIES DURING THE UNIT / WEEK 3
My Learning activities for unit 3 are as follows: Every day, I wake up 5:40 am and getting prepare for learning. My study time starts by 6:30am European time before the Uopeople school time starts. During weekly basis, I usually study 16 to 17 hours starting from 28th Thursdays to 5th Wednesdays and this is a routine that had been developed to my life style. I make sure that assignment are done and reviewed before the submission date. However, on 28th June 2017, I read through the Learning Guide, the syllabi and the instructions on unit 3. On 29th June 2017, I studied chapter 3 of the text book and also rated my 3 of my peer’s assignments. On 30th June 2017, I started …show more content…
Secondly, I am more empowered and determined to flow with my studies. After this course, I see myself as an incurable optimist.
2. TASK UNIT 3
Vocabulary and R functions
i. Dispersion – to spread or distribute from a fixed or constant …show more content…
> r r
[1] 0.1666667 0.2666667 0.2000000 0.2333333 0.1333333
The r = f /sum(f) represents the Relative Frequencies of the values of the variable: 5/30 8/30 6/30 7/30 and 4/30
> a
[1] 0 1 2 3 4
> r
[1] 0.1666667 0.2666667 0.2000000 0.2333333 0.1333333
> m m
[1] 1.9
> m sq sq
[1] 18.05 6.48 0.06 8.47 17.64
This represents Squares of Deviations times frequencies
5* (0 -1.9)^2 8* ( 1 - 1.9)^2 6 * ( 2 - 1.9)^2 7 * (3 - 1.9)^2 4* (4-1.9)^2
> ss ss
[1] 50.7
This is the SUM OF SQUARES OF DEVIATIONS
By definition the variance is the sum of squares of deviations divided by the (sample size - 1)
> v v
[1] 1.748276
> sd sd
[1] 1.322224
One thing I noticed is that the sign = and <- sign.
Reference:
Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988) The New S Language. Wadsworth & Brooks/Cole.
Yakir, B. (2011). Introduction to Statistical Thinking (With R, Without Calculus). Retrieved from