is this a sample or a population?
The data in the table below (and continued on the following page) show the 46 counties of South Carolina, and the number of cumulative COVID-19 cases reported by each county from the... more
Is it too late to change my major after my junior year in college?
I'm a college student and just finished my junior year. I have a passion for animals so much, but I'm majoring in Drawing & Illustration and minoring in Psychology. I love art and understand... more
Find probability with random variable
Assume the random variable x is normally distributed with mean μ=82 and standard deviation σ=4. Find the indicated probability.P(71<x<74)
Suppose that using a particular method, there is a probability of 0.85 that a solder joint has abarrel shape, there is a probability of 0.03 that a solder joint has a cylinder shape, and there isa... more
What is the probability of picking an Ace or a 7 from a standard deck of cards? Write as a simplified fraction.
A particular fruit's weights are normally distributed, with a mean of 556 grams and a standard deviation of 33 grams.The heaviest 3% of fruits weigh more than how many grams?Give your answer to the... more
how to apply kurt lewin theory in preparing organization for adoption of google culture
Can dplyr join on multiple columns or composite key?
I realize that `dplyr` v3.0 allows you to join on different variables:`left_join(x, y, by = c("a" = "b")` will match `x.a` to `y.b`However, is it possible to join on a combination of variables or... more
How to combine multiple data sources?
I have two data sets. Data set A: data about lifestyles, health conditions and SOCIOECONOMIC and Data set B: data about travel behavior and also SOCIOECONOMIC. We don't know whether they are the... more