We are given a set of constraints for a survey of 500 students regarding their preference for: Let’s break down each statement step-by-step and construct a table to solve all questions. 🧩 Step 1: Total Students = 500 We’ll keep track of counts in terms of: 🧩 Step 2: Statement-wise Translation Given: (1) 250 students … Read more
The chart below provides complete information about the number of countries visited by Dheeraj, Samantha and Nitesh, in Asia, Europe and the rest of the world (ROW). The following additional facts are known about the countries visited by them. Q. 1 How many countries in Asia were visited by at least one of Dheeraj, Samantha … Read more
Set 3 : Common Entrance Test Q1-4. Applicants for the doctoral programmes of Ambi Institute of Engineering (AIE) and Bambi Institute of Engineering (BIE) have to appear for a Common Entrance Test (CET). The test has three sections: Physics (P), Chemistry (C), and Maths (M). Among those appearing for CET, those at or above the … Read more
A survey of 600 schools in India was conducted to gather information about their online teaching learning processes (OTLP). The following four facilities were studied.F1: Own software for OTLPF2: Trained teachers for OTLPF3: Training materials for OTLPF4: All students having LaptopsThe following observations were summarized from the survey.1. 80 schools did not have any of … Read more
1000 patients currently suffering from a disease were selected to study the effectiveness of treatment of four types of medicines — A, B, C and D. These patients were first randomly assigned into two groups of equal size, called treatment group and control group. The patients in the control group were not treated with any … Read more