Learning Journal
Unit 4
By Camille Telesford
6th July, 2017
Unit 4 work
Day 1 experience
Today, I went through the learning Guide of this course to identify what is needed to be done. After which, I began reading chapter four of the textbook but had some challenges there.
7th July, 2017
Unit 4 work
Day 2 experience
I continued reading chapter four to get a better understanding of the topic. Moreover, I began my first draft for the assignment which I also had some challenges with again.
8th July, 2017
Unit 4 work
Day 3 experience
Today, I review the chapter as well as Math1280 notes and tried all the exercises there to fully grasp the topic. Additionally, I have assessed my peers in the respective areas and did the supplementary quiz.
9th
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More so, I continued with the assignment.
11th July, 2017
Unit 4 work
Day 6 experience
Today, I have completed the assignment after an extensive period of trying to understand the question fully.
12th July, 2017
Unit 4 work
Day 7 experience
I have completed my learning Journal and discussion. Also, I read over my work. After, I have dispatched all my work to their respective areas.
2. Vocabulary and R functions
a) The symbol x-bar represents the mean of a sample.
b) The Greek letter mu (μ) as it was used in this week's lessons represent the population mean.
c) The difference between x-bar and mu is that the x- bar shows the mean of the data that is calculated from the values that appear in the sample whereas with mu, the mean of the data is calculated from all the values in the population.
3. Mean
a)
Value 10 11 12 13 14 15 16
Probability 0.1
2 0.1
3 0.1
4 0.2
5 0.1
6 0.1
2 0.0
8
The other method of calculating the mean of a sample data by using the value and probability is by taking the weighted sum and extending it over each single value so each value is multiplied by their respective probability and then summed up these values to obtain the mean. The outcome from R code is as
2. Based on the scale of measurement for each variable listed below, which measure of central tendency is most appropriate for describing the data?
*If you go through each item on this study guide and read about it on the REFerenced page and corresponding TOPic in your text, you should have an excellent study guide for the Final Exam. If you do not do this, you will likely fail this exam miserably!
Mean is the average of a group of scores (Woolfolk, 2014). Mean and average are used interchangeably. To find the mean, a teacher will add all of the scores together and divided by the number of tests. For example, a teacher wants to find the mean of the spelling test, the spelling test scores are as the following, 10, 8, 7, 8, 10, 10, 6, 5, 7, and 5. The first step is to add all of the scores together (76). The second step is to divided by the number of tests (10), the quotient is the mean (7.6). The first math equation is 10+8+7+8+10+10+6+5+7+5=76. The second math equation is 76/10=7.6. The mean of the
Complete exercises 10.55, 10.57 (parts a and b only), 10.59 (part a only), 10.61 (part a only). You will need:
| |This Module 2: Lesson 4 Assignment is worth 15 marks. The value of each assignment and each question is stated in the left margin. |
(b) The value of Z with an area of 5% in the right tail, but not the sample mean.
5. Give the standard deviation for the mean and median column. Compare these and be sure to identify which has the least variability?
7. The mean (X—) is a measure of ____________ ______________ of a distribution while the SD is a measure
Refer as needed to material in Chapters 12 and 13. Read the instructions carefully and answer all questions clearly and concisely. Include examples to highlight your comments.
5. Give the standard deviation for the mean and median column. Compare these and be sure to identify which has the least variability?
In the book at present appears to be intriguing to you, keep on going for the accompanying steps. Whether not, pick in turn book.
The two parts in this assignment will contribute equally to your grade and will be evaluated separately.
The problem I am going to work on is #68 on page 539 . The
(9) Solve exercise 14.14 (a, b, c) on page 390 from the course text book (5th edition). For the 4th edition users, the question is 13.14 (a,b,c)
Once you have read the textbook chapter and the Reading, answer discussion questions 1, 3- 5 (ignore questions 2 and 6).