Home » Data Science » Data Analysis » A data analyst creates a data frame with data that has more than 50,000 observations in it. When they print their data frame, it slows down their console. To avoid this, they decide to switch to a tibble. Why would a tibble be more useful in this situation? Q: Practice More Questions From: Working with data in R Created with Fabric.js 4.6.0 Similar Questions A data analyst is working with a dataset in R that has more than 50,000 observations. Why might they choose to use a tibble instead of the standard data frame? Select all that apply.This information will be part of the plot. The plot, or conflict, is used to create tension in the data story. For Gaea’s situation, it would include two ideas: An explanation of some of the…A data analyst creates a scatterplot with a lot of data points. The analyst wants to make some points on the plot more transparent than others. What aesthetic should the analyst use?Why would a data analyst create a template of their .rmd file? Select all that apply.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 is working with a data frame named stores. It has separate columns for city (city) and state (state). The analyst wants to combine the two columns into a single column named location,…A data analyst is working with a data frame named retail. It has separate columns for dollars (price_dollars) and cents (price_cents). The analyst wants to combine the two columns into a single column…You are creating a dashboard in Tableau to share with stakeholders. Why might you decide to pre-filter the dashboard? Select all that apply.A data analyst uses the Color tool in Tableau to apply a color scheme to a data visualization. Why do they make sure the color scheme has contrast?Model 1 has a c-index of 0.7 and Model 2 has a c-index of 0.6. Which is more accurate using a threshold of 0.5 for the risk score?A data analyst is working with a data frame named cars. The analyst notices that all the column names in the data frame are capitalized. What code chunk lets the analyst change all the column names to…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 working with a data frame named sales. They write the following code:sales %>%The data frame contains a column named q1_sales. What code chunk does the analyst add to change the…A data analyst is working with the penguins data. The analyst creates a scatterplot with the following code:ggplot(data = penguins) +geom_point(mapping = aes(x = flipper_length_mm, y = body_mass_g,…A data analyst who works with R creates a weekly sales report by remaking their .rmd file and converting it to a report. What can they do to streamline this process? Created with Fabric.js 4.6.0 Practice More Questions Data Analysis 200+ Qs Machine Learning 100+ Qs
