MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3

Saturday, October 26, 2019
Evening of summer, painted by Halfdan Johnsen Egedius


A Population:
19. Determine how many observations in the pop3.csv file are of type a: 33,333.

R code:
> counts<-data.frame(table(pop3))
> counts


20. Using the appropriate R function with the defaul options, what is the median of the time column of pop3 (round to 3 decimal places): 4.473

R Code:
> pop3 <- read.csv("pop3.csv")
> round(median(pop3$time), 3)
[1] 4.473


Portrait of Mari Clasen, painted by Halfdan Johnsen Egedius


21. What is the variance of the time column of pop3 (rounded to three decimal places)?
Answer: 54.916

R Code:
> round(var(pop3$time), 3)

[1] 54.916


Halfdan Johnsen Egedius was born in Norway in 1877

20 comments:

  1. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -
      A Population:
      19. Determine how many observations in the pop3.csv file are of type a: 33,333.

      R code:
      > counts<-data.frame(table(pop3))
      > counts

      Delete
  2. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -

      Delete
  3. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -
      20. Using the appropriate R function with the defaul options, what is the median of the time column of pop3 (round to 3 decimal places): 4.473

      R Code:
      > pop3 <- read.csv("pop3.csv")
      > round(median(pop3$time), 3)
      [1] 4.473

      Delete
  4. Because I don't understand the math, I'll comment on the paintings...

    I had to look up Egedius. Such a tragically short life! Only 21 when he died. The work is interesting - a rather harsh realism.

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -
      21. What is the variance of the time column of pop3 (rounded to three decimal places)?

      Answer: 54.916



      R Code:

      > round(var(pop3$time), 3)

      [1] 54.916

      Delete
  5. Ilove maths but I'm afraid I forgot many things!!
    xoxo

    marisasclosetblog.com

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -
      A Population:
      19. Determine how many observations in the pop3.csv file are of type a: 33,333.

      R code:
      > counts<-data.frame(table(pop3))
      > counts

      Delete
  6. I love the paintings, too:) Math has always been quite challenging for me:(

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -
      20. Using the appropriate R function with the defaul options, what is the median of the time column of pop3 (round to 3 decimal places): 4.473

      R Code:
      > pop3 <- read.csv("pop3.csv")
      > round(median(pop3$time), 3)
      [1] 4.473

      Delete
  7. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -
      21. What is the variance of the time column of pop3 (rounded to three decimal places)?
      Answer: 54.916

      R Code:
      > round(var(pop3$time), 3)
      [1] 54.916

      Delete
  8. The artwork of Egedius is gorgeous! The math goes over my head. :)

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -
      A Population:
      19. Determine how many observations in the pop3.csv file are of type a: 33,333.

      R code:
      > counts<-data.frame(table(pop3))
      > counts

      Delete
  9. interesting information and images ☺
    best regards
    Lili

    ReplyDelete
    Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -
      20. Using the appropriate R function with the defaul options, what is the median of the time column of pop3 (round to 3 decimal places): 4.473

      R Code:
      > pop3 <- read.csv("pop3.csv")
      > round(median(pop3$time), 3)
      [1] 4.473

      Delete
  10. Replies
    1. Thank you to visit:
      MATH 1280 Introduction to Statistics – Assignment Unit 4 – Part 3
      -
      21. What is the variance of the time column of pop3 (rounded to three decimal places)?
      Answer: 54.916

      R Code:
      > round(var(pop3$time), 3)
      [1] 54.916

      Delete