Python
What's the output of len(set([1, 2, 2, 3, 4, 4, 5]))?
5
What's library(tidyverse)?
Loads a collection of R packages for data manipulation, visualization, and modeling
SELECT COUNT(*) FROM table_name;
Returns the number of rows in the table
ANOVA stands for
Analysis of variance
The first prime number is
2
What's the output of [i for i in range(10) if i % 2 == 0]?
[0, 2, 4, 6, 8]
summary(data)
Summary of the data contained in the data frame, including the minimum, maximum, median, and quartiles for each variable
ALTER TABLE T ADD C varchar(255);
Adds a new column C of type varchar to table T
What's the probability of getting heads when flipping a coin once?
50%
What's one of the tops public websites to find and publish datasets?
Kaggle
What's the len of this output? list(itertools.permutations(range(1, 4)))
Len = 6
[(1, 2, 3), (1, 3, 2), (2, 1, 3), (2, 3, 1), (3, 1, 2), (3, 2, 1)]
What is this code doing?
library(dplyr)
data("mtcars")
mtcars %>% group_by(cyl) %>% summarise(avg_hp = mean(hp))
Loads packages and dataset, then calculates the average horsepower (hp) for each group
SELECT name, last_name FROM patient_cohort WHERE name LIKE '%John%" ORDER BY last_name DESC
Select only patients like John and return name, last name in descending order of last name.
A t-test compares the ______ of two groups.
Means
What FHIR stands for?
Fast Healthcare Interoperability Resources
Assuming internet connectivity, what would be the output of requests.get("https://www.google.com")
200
summary(lm(y ~ x))
summary of the linear regression model
What's a VIEW?
Virtual table
The Pearson correlation coefficient is often represented by what letter?
r
What are the top two EHR vendors in the US?
Epic and Oracle Cerner
What's the output of this statement?
text = "I like eating pizza."
tokens = nltk.word_tokenize(text)
tags = nltk.pos_tag(tokens)
Each word tag with Part of Speech (POS)
[('I', 'PRP'), ('like', 'VBP'), ('eating', 'VBG'), ('pizza', 'NN'), ('.', '.')]
ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point()
scatter plot of mpg versus wt using the ggplot function
What's the difference between UNION and UNION ALL?
UNION statement removes duplicates, while the UNION ALL statement includes duplicates
LCA stands for
Latent class analysis
In chatGPT, GPT stands for
Generative pre-trained transformer