Which of the following are the examples of discrete variables ?
1. Number of errors per page in a book.
2. Height of individuals measured in cm.
3. Waiting time to failure of electric bulbs.
4. Number of leaves on branches of a tree.
Select the correct answer using the code given below :
1 and 4
3 and 4
2 and 4
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy