Home » Data Science » Data Analysis » A data professional wants to define a function to calculate the area of a rectangle. What code should they begin with? Q: Practice More Questions From: Functions and conditional statements Created with Fabric.js 4.6.0 Practice More Questions Data Analysis 2000+ Qs Machine Learning 1000+ Qs Created with Fabric.js 4.6.0 Similar Questions A data analyst is working with a data frame named customers. It has separate columns for area code (area_code) and phone number (phone_num). The analyst wants to combine the two columns into a single…A data analyst creates a bar chart with the diamonds dataset. They begin with the following line of code:ggplot(data = diamonds)What symbol should the analyst put at the end of the line of code to add…A data analyst is studying weather data. They write the following code chunk: bias(actual_temp, predicted_temp) What will this code chunk calculate?A data analyst is working with a large data frame. It contains so many columns that they don’t all fit on the screen at once. The analyst wants a quick list of all of the column names to get a better…A data analyst uses the aes() function to define the connection between their data and the plots in their visualization. What argument is used to refer to matching up a specific variable in your data…Fill in the blank: When creating a variable for use in R, your variable name should begin with _____.You are working with the diamonds dataset. You create a bar chart with the following code:ggplot(data = diamonds) +geom_bar(mapping = aes(x = color, fill = cut)) +You want to use the facet_wrap()…You are working with the diamonds dataset. You create a bar chart with the following code:ggplot(data = diamonds) +geom_bar(mapping = aes(x = color, fill = cut)) +You want to use the facet_wrap()…A data analyst wants a quick summary of the structure of their data frame, including the column names and the number of rows and variables. What function should they use?You are working with the penguins dataset. You create a scatterplot with the following code:ggplot(data = penguins) +geom_point(mapping = aes(x = flipper_length_mm, y = body_mass_g))You want to…You are working with the penguins dataset. You create a scatterplot with the following code:ggplot(data = penguins) +geom_point(mapping = aes(x = flipper_length_mm, y = body_mass_g))You want to…A data analyst is working with the penguins data. The variable species includes three penguin species: Adelie, Chinstrap, and Gentoo. The analyst wants to create a data frame that only includes the…You are working with the World Happiness data in Tableau. What tool do you use to select the area on the map representing Central America?A data analyst is exploring their data to get more familiar with it. They want a preview of just the first six rows to get a better idea of how the data frame is laid out. What function should they…A data professional wants to strengthen their communication skills. They study methods for simplifying highly technical information and telling compelling data stories. They also practice using… Created with Fabric.js 4.6.0 Practice More Questions Data Analysis 200+ Qs Machine Learning 100+ Qs
