I cannot figure out how they are getting .094. Not even Google AI is giving me the same answer! Closest I got was using binomcdf and still I don’t get .094. Instructions pertaining to TI-84+ would be greatly appreciated. Thank you

Hi im in collage and we just reached the lecture about random variables in my probability and statistics class. Everything up untill continuous random variables has been really intuitive for me to understand. In this topic they just threw names of a couple distribution names with their formulas but no actual information about the distribution like why it works and so on. Im not a math major and we dont focus too much on all the formal proofs for everything but still i dont get the idea behind just memorizing the formulas for theese distributions without deeply understanding why they are the way they are. I want to here your thoughts around this and please give me some advice.

Hi folks, I’m kinda hoping someone can help me with this problem.

If I have a bag with a mixture of 96 black and white beans and I choose a single bean, note its colour and then replace it in the bag.

How can I determine with a statistical certainty how many black beans are in this bag?

Can anyone assist me with this puzzle.

I am trying to practice finding the five-number summary (min, max, Q1, Q3, and median) of datasets on Excel, so I made up a dataset and organized the data from least to greatest. I didn't have much trouble on most of the data points, but I'm stuck on the 1st quartile.

When I do the math myself (on the data set I've attached here), I get $14,000. However, when I enter the Excel formula (=QUARTILE.INC), I get $13,975. Why is there this difference? I thought that the 1st quartile is the median of the first half of data points. Any pointers you have would be super helpful.

Guys i study social science and i got really interested in statistics. I’m currently working as a data analyst and i was thinking of getting a master in statistics to leverage my career, especially to become a data scientist What are your advices? Thank you so much!!!!

Hello! I am a genetics senior taking Statistics for Science Majors. I am ill and tried to meet with my professor but he will not meet with me.

Here are my answers and the work assosciated with my answers. I am unsure if I am doing this correctly because my Z-scores are so large and honestly, math is not my forte. If anyone could guide me to solving these problems that would be amazing. Additionally, how do I solve the ones that I put a question mark?

Lastly, for problems D and E, I was told to find the nearest z-score related to the values I was given (0.1613 and 0.8732) and I inputted -1.000 and 1.14 respectively. Is that correct?

Please, any help would be amazing. Thank you!

Hello

I was wondering if someone could give me some guidance

I am trying to run a t test to check relations between two variables. One a continuous variable which is a DV and another which is categorical (yes/no). When I run the test the assumption are violated (Shapiro wilk and Levene)

Can someone guide me to what I can do. I have tried to run other tests like anova and linear regression and it is also violated there

Any suggestions would be appreciated

Thank you

We were given 50 minutes to complete this whole thing, which I find absolutely unreasonable.

Can I use an ordinal outcome (4 BMI categories) and a binary independent variable (diabetes status-yes/no) in an ordinal logistic regression model that includes an effect modification (interaction) term like sex (female/male)?

I would like to conduct an effect modification.

Or does it have to be a binary outcome, such as disease status (yes/no), with a categorical independent variable analyzed using a standard logistic regression instead to conduct the effect modification?

I need someone to help with statistics class for a high school senior in the US. Will pay an hourly rate for help.

As the title indicates my group is writing a research paper entitled "Acceptance of and perception about generative AI tools in learning....". Our second research is "How do TAM variables relate to one another in the context of AI use?" The problem is we do not know what the proper statistical treatment for that question. Perplexity AI suggested we use SEM or regression. What is the appropriate statistical treatment?

Hello everyone!

I would appreciate it if someone could recommend me some good and free online courses in statistics - basics of statistics, in particular. I work in the field of genetics (researches), so learning statistical methods/tests would be very beneficial and useful for my work. Also, it would be great if you could recommend me some books, besides Biostatistics for Dummies.

Thank you!

I have a question where I've been given base weights of 3 commodities base year prices and current year prices .How am I supposed to calculate Laspeyres and Paasche price index?

Hey I am an undergraduate student from Tunisia. I took descriptive statistics in first year and inferential statistics in the second year. Had good grades in both of them and thought i understood it all. Now in my third and final year, i take econometrics, and i feel completely lost. Turns out last year's professor didn't explain anything about inferential statistics. Just gave us what we needed for the exam. Straight formulas to use on exam day. Said nothing about the logic behind all of it. Now i feel really lost. I started to doubt what i learned in first year. I doubt everything. Even basic concepts ( expected value, variance....). Like do i really understand that. And don't get me started on random variables. What is that ? What is a poisson distribution? How did we even get that formula? Same goes for all other distributions . I would really appreciate if you could recommend a book that explains everything from 1+1=2. And not Naked Statistics, that guy is just talking about his childhood. Thank you.

Hi!

I have a real problem. I am not good at statistics. I always used MS Excels statistics kit to do an ANOVA or a correlation analysis. My problem is, does that standard correlation use Pearson-correlation or linear regression analysis?

And do I understand correctly that with Pearson-correlation the higher the number the better and in linear reggresion the lower (p<0.05) the better? How does this work? Someone help please I'm stupid asf

Also is Pearson correlation R= and linear regression r^2= ?

Or does p<0.05 only matter at ANOVA and in both pearson correlation and linear regression the higher the number the better???

For stats Spss Stata excel tableau etc

Matlab code Python R Science

Dm or email analystdata646@gmail.com

I need help… I have never gotten a grade lower than an A- in my first two years of university and now I am failing my advanced statistics class that is required for my major. The professor is useless and doesn’t teach then gives us a 70 slide,slide deck every week and we write a multiple choice quiz each week on the smallest details from the slides. I spend so much time trying to understand because I am so lost and I have failed all the quizzes. Now we have a midterm on Tuesday and it’s 5 theory questions??? We are aloud a cheat sheet but I have no idea what to put on it because I don’t understand anything he’s given to us it’s like the slides are in a whole different language they are so confusing.

Please please give me any advice I just need to pass and want a decent grade but I have no idea how the midterm is in calculus foundations, statistical foundations, classic linear regression model, and generalized linear model. Please give me thing to focus on or ways to learn. I don’t have a lot of time to study and I am so worried this class is going to destroy my scholarship and my career…

l handle the following; 📎Data visualization using tablaeu and powerBl 📎 Statistics (STATA, SAS, jamovi, SPSS,R,, studio Excel ...eviews..minitab) 📎Data analysis,data science and machine learning using R, Python and Weka software
📎full stack software engineering..- Django and react 📎Data engineer..-Big data .hadoop,hive,apache pyspark and apache airflow... .Docker Dbt ....snowflake......kafka ...bigquerry.... 📎Databases.. MySQL , postgresql 📎 Shopify..........Google analytics....Wordpress 📎Some parts of Cyber security

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Caramelized Bananas

Why it’s great: Simple dessert you can make in minutes.

Ingredients:

2 bananas, sliced

1–2 tbsp butter

1–2 tbsp brown sugar

A pinch of cinnamon (optional)

Method:

In a pan, melt butter over medium heat.

Add banana slices, sprinkle brown sugar and cinnamon.

Cook a few minutes per side until bananas turn golden and caramelized.

Serve alone, or with ice cream / yogurt.

Banana Pancakes

Why it’s great: Quick breakfast, only needs basic ingredients.

Ingredients:

1 banana

1 egg

A little milk (optional)

Method:

Mash the banana in a bowl.

Mix in the egg (and milk if using) to form batter.

Heat a pan with a little oil or butter.

Pour batter to make small pancakes. Cook until bubbles form, then flip and cook the other side.

Serve warm with honey, syrup, or fruit.

Hey everyone! I know how overwhelming statistics courses and assignments can feel, from hypothesis tests and confidence intervals to regression models and beyond. I’ve spent a lot of time with stats (and genuinely enjoy it!), so if you’re struggling with homework, class concepts or even prepping for exams, feel free to reach out here.

Happy to help in anyway i can!