Which of the following are sets ? Justify your answer.

A team of eleven best-cricket batsmen of the world.

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A team of eleven best cricket batsmen of the world is not a well-defined collection because the criteria for determining a batsman's talent may vary from person to person.

Hence, this collection is not a set.

Similar Questions

In the following state whether $\mathrm{A = B}$ or not :

$A = \{ x:x$ is a multiple of $10\} ;B = \{ 10,15,20,25,30 \ldots  \ldots \} $

Which of the following sets are finite or infinite.

The set of prime numbers less than $99$

Make correct statements by filling in the symbols $\subset$ or $ \not\subset $ in the blank spaces:

$\{ x:x$ is an even natural mumber $\}  \ldots \{ x:x$ is an integer $\} $

Which of the following are sets ? Justify your answer.

The collection of all natural numbers less than $100 .$

Write the following as intervals :

$\{ x:x \in R,0\, \le \,x\, < \,7\} $