Which one of the following statements is correct ?
A frequency polygon is obtained by connecting the corner points of the rectangles in a histogram.
A frequency polygon is obtained by connecting the mid-points of the tops of the rectangles in a histogram.
A frequency polygon is obtained by connecting the corner points of the class intervals in a histogram.
None of the above
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