MATH 1280 Introduction to Statistics – Learning Journal Unit 4 – Part 1

Tuesday, November 5, 2019
Zebra, painted by Andy Warhol


1. Learning Journal Reflective Comments:
Answer:
We are in the middle of statistic course now. At this 4th week, I start with reading “learning guide unit 4” to get understand about what statistic topics will be learned.

Then, I write “discussion assignment unit 4.” After completion of discussion assignment, I post it to the forum. Read other peer’s posts, and give the comments.

Moreover, I study the topics of fourth week that are the histogram, the box plot, Median, first and third quartiles and the inter-quartile range, outliers, the mean (average), Skewness, the (sample) variance and standard deviation, and measuring the distance of a value from the mean.

I think have no problems to understand these topics. However, the assignment unit 4 is quite challenging to complete.


Tomato soup, painted by Andy Warhol

I completed the assignment with one question is quite doubting to answer. Then, I am writing journal about fourth week activities. After completing the journal, I post it for grading.


2. Vocabulary and R functions
a) What does the symbol x-bar represent?
Answer:
x-bar represents sample mean

b) What does the Greek letter mu (μ) represent as it was used in this week's lessons?
Answer:
mu (μ) represents population mean


c) What is the difference between x-bar and mu?
Answer:
First, x-bar for sample, (μ) for population in regard to mean. Then, mean for population is a parameter, while mean for sample is a statistic.

# To be continued to part - 2

16 comments:

  1. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Learning Journal Unit 4 – Part 1
      -
      Zebra, painted by Andy Warhol

      Delete
  2. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Learning Journal Unit 4 – Part 1
      -
      1. Learning Journal Reflective Comments:
      Answer:
      We are in the middle of statistic course now. At this 4th week, I start with reading “learning guide unit 4” to get understand about what statistic topics will be learned.

      Delete
  3. I love Andy Warhol, his art is beautiful.

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Learning Journal Unit 4 – Part 1
      -
      Then, I write “discussion assignment unit 4.” After completion of discussion assignment, I post it to the forum. Read other peer’s posts, and give the comments.

      Delete
  4. I always loved the paintings of Andy Warhol. These two paintings are so different
    and so amazing!!!

    ReplyDelete
    Replies
    1. I see

      Thank you to visit:
      MATH 1280 Introduction to Statistics – Learning Journal Unit 4 – Part 1
      -
      Moreover, I study the topics of fourth week that are the histogram, the box plot, Median, first and third quartiles and the inter-quartile range, outliers, the mean (average), Skewness, the (sample) variance and standard deviation, and measuring the distance of a value from the mean.

      Delete
  5. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Learning Journal Unit 4 – Part 1
      -
      I think have no problems to understand these topics. However, the assignment unit 4 is quite challenging to complete.

      Delete
  6. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Learning Journal Unit 4 – Part 1
      -
      I completed the assignment with one question is quite doubting to answer. Then, I am writing journal about fourth week activities. After completing the journal, I post it for grading.

      Delete
  7. how cool is this zebra ☺
    best regards
    Lili

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Learning Journal Unit 4 – Part 1
      -
      2. Vocabulary and R functions
      a) What does the symbol x-bar represent?
      Answer:
      x-bar represents sample mean

      Delete
  8. I love the pictures from Andy Warhol. Have a nice november.

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Learning Journal Unit 4 – Part 1
      -
      b) What does the Greek letter mu (μ) represent as it was used in this week's lessons?
      Answer:
      mu (μ) represents population mean

      Delete