Questions tagged [statistics]
Consider whether your question would be better at http://stats.stackexchange.com. Statistics is the mathematical study of using probability to infer characteristics of a population from a limited number of samples or observations.
So, basically I have a list of 2D vectors in python, and I want to make a 3d visualization of the distribuition of this vector, like a surface curve, throught plotly. I'll leave a sample of the first ...
According to the Excel documentation, Skew computes the (not specified) skewness, and Skew.P computes the population skewness. The documentation does not state, which measure is meant. Wikipedia ...
I have a dataframe with columns: sr.no., date, company name, pe, etc.
I want to find the 10th percentile for all the data below it.
I have data that range from 2000 to 2020.
for example, my 10th ...
I want to make a Unity game that sends ingame stats to a website, Like how many times a player has shot, how many kills the play has. ect.
my question is is this even possible using Unity? if yes ...
I want to know how to check oftenness.
The oftenness means , for example, how often do online user enter the online channel.
So, I wanna get some index that some user is heavy user or not.
Here is ...
How to find the correlation between the numerical target variable and categorical variables with a large number of unique values??
Assume we have four lists:
l1 = [100, 123, 29, 90, 107]
l2 = [13, 21, 81, 79, 40]
l3 = [1, 7, 9, 0, 3]
l4 = [41, 123, 371, 54, 63]
At a glance, l3 has minimal numbers, since its range/average are ...
I have built a model that predicts which customers are likely to churn in the next quarter. To test the model I am doing a kind of longitudinal test in 3 phases.
I have two groups of equal sizes:
I am dealing with a large time series data set (with almost 100K records) with unix timestamp. I need min, mean, max, avg_of_lowest_n, avg_of_top_n from the value column. I can get min, mean, max as ...
I have a data set as I've shown below:
It shows which book is sold by which shop.
df <- tribble(
I have been tasked with writing a function in python to calculate the covariance of an array, without using the numpy or statistics module.
I used the below to find the variance:
I am trying to do the "Fixed/Random Effects Models using R" exercise found at (http://rstudio-pubs-static.s3.amazonaws.com/372492_3e05f38dd3f248e89cdedd317d603b9a.html)
However, for homework I have ...
If the dependent variable under question is ordinal/categorical and independent variable have 2 categorical variable can Mann-Whitney test be applied or 2 independent sample t test can be applied?
I have a dataset that measures the expression levels of large numbers of genes simultaneously.
Here is some part of my data frame
Column 0 refers to gene types and other columns are patient samples. ...
I am trying to do a t test for factors determining decision to pursue university education controlling for gender i.e. male and female.. is it possible to run the test for two categorical variables?