Category: Statistics

Variable Activity
What makes a function of a discrete variable a candidate for a discrete random variable distribution? What about the counterpart of this candidacy in the case of a continuous variable? Explain in a one-page, APA formatted response.
Investment Classes Activity
For each investment class in Table 3, assume that future returns are normally distributed with the population mean and standard deviation as given. Based on this assumption:
For each investment class, find the probability of a return that is less than zero (that is, find the probability of a loss). Is your answer reasonable for all investment classes? Explain.
For each investment class, find the probability of a return that is: Greater than 5%.
Greater than 10%.
Greater than 20%.
Greater than 50%.
For which investment classes is the probability of the return greater than 50% is essentially zero? For which investment classes is the probability of such a return greater than 1 percent? Greater than 5%?
For which investment classes is the probability of loss essentially zero?
For which investment classes is the probability of loss greater than 1%? Greater than 10%? Greater than 20%?

The Monty Hall problem is a brain teaser, in the form of a probability puzzle, loosely based on the American television game show Let’s Make a Deal and named after its original host, Monty Hall. The problem was originally posed in a letter by Steve Selvin to the American Statistician in 1975. It became famous as a question from a reader’s letter, quoted in Marilyn vos Savant’s “Ask Marilyn” column in Parade magazine in 1990:
Suppose you’re on a game show, and you’re given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what’s behind the doors, opens another door, say No. 3, which has a goat. He then says to you, “Do you want to pick door No. 2?” Is it to your advantage to switch your choice?
1. Would you stay with your original door selection, or would you switch? Explain your reasoning.
2. Watch at least one of the following videos about the Monty Hall Problem.
Monty Hall Problem
(If you would like additional explanation, you can watch the following additional videos:
Monty Hall Problem for Dummies or Probability and the Monty Hall Problem or The Monty Hall Problem – Explained )
Indicate which video(s) you watched. If you found another one on your own, include the link.
3. What is the probability of winning if you stay with your original door selection?
4. What is the probability of winning if you switch to the other door, after you’ve been shown the door with a goat?
5. Write a paragraph explaining why a contestant should switch doors on the game show.
Note: Parts of this discussion were based on CC LICENSED CONTENT, ORIGINAL
Discussion: Probability. Provided by: Lumen Learning. License: CC BY-SA: Attribution-ShareAlike
Video Citations:
Numberphile (2014, May 22). Monty Hall Problem [Video]. | Youtube | 5.30 min.
Numberphile (2014, May 28). Monty Hall Problem for Dummies [Video]. | Youtube | 4.17 min.
Khan Academy (2012, Jun 27). Probability and the Monty Hall Problem [Video]. | Youtube | 7.22 mins.
AsapSCIENCE (2012, Nov 6). The Monty Hall Problem – Explained [Video]. | Youtube| 2.47 mins.

I would like you to perform an ANCOVA test on the data given to you in the spreadsheet. I would like you to calculate the relationship between exercise and bone mineral density. You should use produce as your co-variate. Put your results in a word document and describe the results is as much detail as possible.

The Monty Hall problem is a brain teaser, in the form of a probability puzzle, loosely based on the American television game show Let’s Make a Deal and named after its original host, Monty Hall. The problem was originally posed in a letter by Steve Selvin to the American Statistician in 1975. It became famous as a question from a reader’s letter, quoted in Marilyn vos Savant’s “Ask Marilyn” column in Parade magazine in 1990:
Suppose you’re on a game show, and you’re given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what’s behind the doors, opens another door, say No. 3, which has a goat. He then says to you, “Do you want to pick door No. 2?” Is it to your advantage to switch your choice?
1. Would you stay with your original door selection, or would you switch? Explain your reasoning.
2. Watch at least one of the following videos about the Monty Hall Problem.
Monty Hall Problem
(If you would like additional explanation, you can watch the following additional videos:
Monty Hall Problem for Dummies or Probability and the Monty Hall Problem or The Monty Hall Problem – Explained )
Indicate which video(s) you watched. If you found another one on your own, include the link.
3. What is the probability of winning if you stay with your original door selection?
4. What is the probability of winning if you switch to the other door, after you’ve been shown the door with a goat?
5. Write a paragraph explaining why a contestant should switch doors on the game show.
Note: Parts of this discussion were based on CC LICENSED CONTENT, ORIGINAL
Discussion: Probability. Provided by: Lumen Learning. License: CC BY-SA: Attribution-ShareAlike
Video Citations:
Numberphile (2014, May 22). Monty Hall Problem [Video]. | Youtube | 5.30 min.
Numberphile (2014, May 28). Monty Hall Problem for Dummies [Video]. | Youtube | 4.17 min.
Khan Academy (2012, Jun 27). Probability and the Monty Hall Problem [Video]. | Youtube | 7.22 mins.
AsapSCIENCE (2012, Nov 6). The Monty Hall Problem – Explained [Video]. | Youtube| 2.47 mins.

I would like you to perform an ANCOVA test on the data given to you in the spreadsheet. I would like you to calculate the relationship between exercise and bone mineral density. You should use produce as your co-variate. Put your results in a word document and describe the results is as much detail as possible.

Think of a topic or question that you’re interested in exploring further that can be studied through data.
It is recommended, but not required, that you pick a topic in your field of study.
Find a source for your data (or use one of the suggested data source sites listed below).
The data must be quantitative and ratio-level (See Chapter 1, section 2).
You will need between 30 – 60 data values.
You will need to provide a direct link to the source of the data.
Your data must be less than 2 years old.
Using Excel, perform the following statistical analyses:
Calculate Descriiptive Statistics using Data Analysis (See Chapter 3, page 102) – Mean, Median, Mode, Sample Standard Deviation, Variance, 5-number Summary,
Generate a bar chart (See Chapter 2, pages 38-39)
Generate a pie chart (See Chapter 2, page 40-43) – If possible, break your data into categories and provide counts for each category. Then use this to generate a pie chart.
Generate a histogram (See Chapter 2, pages 56-59)
Generate a line graph (See Chapter 2, pages 71-72)
Generate a box and whisker (Chapter 3, pages 143-147)

Descriptive Statistics For Questions on the Survey
Locate the class data for the survey question that you constructed. (You will find the data under the discussion labeled “Survey Discussion”.)
Assume the data you collected is a sample from the population of online STA2023 at BC.
Rewrite your survey question from Discussion 1. (Note that if you did not complete discussion 1, you will have to create a survey question and gather at least 30 responses via discussion, email, in-person, etc. You may want to speak with your professor about how to best handle this. You will need the quantitative data from your survey question for several discussions in this course.)
List all the class responses to your survey question in ascending order.
Find the sample mean, median, and mode for your survey responses.
Find the sample standard deviation, variance, and range for your survey responses.
Find the z-score for the largest (maximum) value in your data set. Is that value an outlier (a significantly high value)?
MAKE UP DATA FROM THIS QUESTION; How many hours a week do you workout?.
below is an example of another students work
Survey Question: How many pairs of Crocs do you own?
1. Answers in ascending order: 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 3, 10
2. Sample mean, median and mode:
– Sample mean: 1.25
– Sample median: 1
– Sample mode: 0
3. Sample standard deviation, variance and range:
– Sample standard deviation: 2.2449
– Sample variance: 5.0395
– Sample range: 10
4. Z-score for the largest (maximum) value in the data set: 3.898
– Is the value an outlier? Yes

The most important part of statistics is accurately and effectively communicating the results of a study. For this lab, you will be conducting a statistical analysis for data of your choosing.
Lab Procedure:
Think of a topic or question that you’re interested in exploring further that can be studied through data.
It is recommended, but not required, that you pick a topic in your field of study.
Find a source for your data (or use one of the suggested data source sites listed below).
The data must be quantitative and ratio-level (See Chapter 1, section 2).
You will need between 30 – 60 data values.
You will need to provide a direct link to the source of the data.
Your data must be less than 2 years old.
Using Excel, perform the following statistical analyses:
Calculate Descriiptive Statistics using Data Analysis (See Chapter 3, page 102) – Mean, Median, Mode, Sample Standard Deviation, Variance, 5-number Summary,
Generate a bar chart (See Chapter 2, pages 38-39)
Generate a pie chart (See Chapter 2, page 40-43) – If possible, break your data into categories and provide counts for each category. Then use this to generate a pie chart.
Generate a histogram (See Chapter 2, pages 56-59)
Generate a line graph (See Chapter 2, pages 71-72)
Generate a box and whisker (Chapter 3, pages 143-147)
All axes should be properly labeled.
See Canvas resources for examples of each type of chart.
Using Word, write a short report that introduces your data and utilizes the two best visual representations of your data.
Explain how your data is quantitative and at the ratio-level.
Discuss the descriiptive statistics that you found.
Explain your choice for which two visual representations best represent your data.
What conclusions can you draw about your data from the visual representations

I need help to answer the questions and then write the solutions in the answer form. The instructions, data set, and answer form are attached.

I am doing an analysis on the mental health of an offender in Administrative Segregation while incarcerated. My data is showing me that administrative segregation DOES NOT decrease the mental health of inmates.
Here is my data:
https://www.icpsr.umich.edu/web/NACJD/studies/31321/summary
I need to use 10-14 independent variables however I must use 2 dependent variables. For my dependent variables I want to use anxiety and self-harm data.
I need to analyze my data with a
zero-order correlation and two types of
multivariate analysis: (1) Ordinary least-squares regression and (2) Logistic regression.
The zero-order correlation, ordinary least squares regression and logistic regression all have to go on Microsoft word on separate pages.
Attached I have an example on how the three tables need to be on Microsoft Word. This is an example and a paper on a completely different topic.
Thank you in advance.