Exploring Basic features of R — past-year questions
Big Data Analysis (CSC702) · Semester 7 · Module 6 · Comps
6 past-year questions on Exploring Basic features of R have appeared in Mumbai University CSC702 papers between 2024–2026, 6 times in total. Every question is shown in full below with its marks and repeat count. Model answers require a free account.
Questions asked on Exploring Basic features of R
- 1.
List and explain various functions that allow users to handle data in R workspace with appropriate examples.
10M1× seenlast asked 2026 - 2.
i. Create a Data Frame from the following 4 vectors in R: stud_id <- c(101:105) stud_name <- c("Amit", "Neha", "Karan", "Priya", "Rohit") admission_date <- c("2020-07-15", "2021-02-10", "2020-12-01", "2021-06-25", "2021-09-05") marks <- c(78, 65, 89, 55, 72) ii. Display the structure and summary of the above data frame. iii. Extract only the stud name and marks columns from the data frame. iv. Extract the student details whose marks are greater than or equal to 70.
10M1× seenlast asked 2026 - 3.
The project manager at XYZ Ltd., Ms. Meera, is responsible for maintaining details of all active projects. She has organized the project information in the following table: | Project Id | Project Name | Budget | Status | |---|---|---|---| | 1 | CRM Implementation | 120000 | In Progress | | 2 | Cloud Infrastructure | 180000 | Completed | | 3 | Network Upgrade | 60000 | Not Started | | 4 | E-Commerce Platform | 220000 | Completed | | 5 | Data Analytics | 90000 | In Progress | i) Create a Data frame in R for the above project data and display the output. ii) Ms. Meera has recently approved 2 new projects and wants to add their information. The new projects are as follows: | Project Id | Project Name | Budget | Status | |---|---|---|---| | 6 | UX Research | 160000 | Not Started | | 7 | Cloud Integration | 190000 | Not Started | Update the Data frame to include the new projects and demonstrate the final output.
10M1× seenlast asked 2025 - 4.
List and discuss various types of data structures in R.
10M1× seenlast asked 2025 - 5.
Consider the following data frame given below: | course | id | class | marks | |---|---|---|---| | 1 | 11 | 1 | 56 | | 2 | 12 | 2 | 75 | | 3 | 13 | 1 | 48 | | 4 | 14 | 2 | 69 | | 5 | 15 | 1 | 84 | | 6 | 16 | 2 | 53 | i. Create a subset of course less than 5 by using [ ] brackets and demonstrate the output. ii. Create a subset where the course column is less than 4 or the class equals to 1 by using subset() function and demonstrate the output.
10M1× seenlast asked 2024 - 6.
The project manager at ABC Corp, Mr. Thomas, needs to track information about ongoing projects in the organization. He has the following details about current projects in a table format: | ProjectId | ProjectName | Budget | |---|---|---| | 1 | Website Redesign | 150000 | | 2 | Mobile App Launch | 100000 | | 3 | Data Migration | 80000 | | 4 | AI Development | 200000 | | 5 | Cybersecurity Audit | 50000 | i) Create a Data frame in R for the above project data and display the output. ii) Show the structure and summary statistics of the Data Frame created.
10M1× seenlast asked 2024
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