Question Discussion & Solution

The correct answer is Scatter plots.

Key Points

• Scatter plots
  • A correlation exists between two variables when one of them is related to the other in some way.
  • A scatterplot is the best place to start.
  • A scatterplot (or scatter diagram) is a graph of the paired (x, y) sample data with a horizontal x-axis and a vertical y-axis.
  • Each individual (x, y) pair is plotted as a single point.
  • Scatter plots are often used to find out if there's a relationship between variable X and Y. Hence, Option 2 is correct.
  • A scatterplot can identify several different types of relationships between two variables.
  • A relationship has no correlation when the points on a scatterplot do not show any pattern.
  • A relationship is non-linear when the points on a scatterplot follow a pattern but not a straight line.
  • A relationship is linear when the points on a scatterplot follow a somewhat straight line pattern. This is the relationship that we will examine.
• 

Additional Information

Option(3) is correct.

Assumption I: There is a doubt about the quality of water being supplied in the town: Cholera is spread through water or through food and to prevent the spread of cholera in town, doubt about the quality of water is precautionary. So, this assumption is implicit.

Assumption II: There is some report of cholera in town: As indicated in the given statement, the medical department attempt to prevent the spread of cholera and the spreading of disease only takes place if it exists. So, this assumption is implicit.

Hence, the correct answer is an option(3)i.e., Both the assumptions are correct.

• A CASE tool is a generic term used to denote any form of automated support for software engineering, in a more restrictive sense a CASE tool can mean any tool used to automate some activity associated with software development
• Some of the CASE tools assist in phase-related tasks such as specification, structured analysis, design, coding, testing, etc. and others to non-phase activities such as project management and configuration management
• The primary objectives of using any CASE tool are:

1. To increase productivity.
2. To help produce better quality software at a lower cost.

The correct answer is Dungarpur.

• Dungarpur district of Rajasthan does not touch two States of India.

Key Points

• Dungarpur district is the third smallest district of Rajasthan.
  • It shares borders with Udaipur and Banswara districts.
  • The district consists of 5 tehsils Aspur, Dungarpur, Sagwara, Simalwara and Bchiwara.
  • Places of historic importance in Dungarpur are Juna Mahal, Udai Bilas Palace, Gaib Sagar Lake and Badal Mahal.

Additional Information

• Dholpur shares border with Bharatpur and Karauli district of Rajasthan
  • It also shares a border with Agra of Uttar Pradesh and Gwalior and Moreana of Madhya Pradesh.
• Bharatpur district touches the district of Alwar, Dholpur and Dausa of Rajasthan.
  • It also shares a border with the Mathura and Agra districts of Uttar Pradesh and Gurgaon district of Haryana.
• Hanumangarh shares its borders with Churu, Sri Ganganagar, Punjab and Haryana.