Question
In a circle, the length of a chord AB is 48 cm & radius
is 25 cm. Find the distance between centre and chord.Solution
Let AB is chord , O is centre of circle, OC is perpendicualr dran on AB So now C will be mid point of Chord. Hence AC =AB/2 = 48/2 = 24 cm& OA = radius = 25 cm So in Right angle triangle OAC , By pythagorus triplet of (7,24 & 25), OC = 7 cm
To help a retail business increase its conversion rate, a data analyst should start by defining which of the following metrics?
What factor is the most critical when determining the appropriate sample size for a study?
In SQL, which of the following best describes the role of a subquery within a SELECT statement?
A retail company is facing declining sales over the last three quarters. As a data analyst, what is the first step in identifying the business problem t...
Which data transformation technique would be best for converting categorical variables, such as “Gender” (Male, Female), into a format usable in mac...
Which of the following best defines the role of a data analyst within an organization?
A data analyst has generated insights on customer retention trends. To effectively communicate these insights, which of the following techniques would b...
Which of the following statements best describes the purpose of a p-value in hypothesis testing?
You are combining sales data from three different sources, each with slightly different column names for the same information (e.g., "Product_ID," "Prod...
Which of the following best illustrates the concept of polymorphism in Object-Oriented Programming (OOP)?