The sum and the sum of squares of the observations corresponding to length X (in cm) and weight Y (in gm) of 50 tropical tubers are given as ∑X=200, ∑Y=250, ∑X^2=900 and ∑Y^2=1400. Which one of the following statements is correct?
Coefficient of variation of X is strictly more than coefficient of variation of Y.
Coefficient of variation of X is strictly less than coefficient of variation of Y.
Coefficient of variation of X is same as coefficient of variation of Y.
Coefficient of variation cannot be determined from the given data.
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