Tag: economics

A candidate who gets $20$% marks in an examination fails by $30$ marks but another candidate who gets $32$% gets $42$ marks more than the pass mark. Then, the percentage of pass mark is

By the $18^{th}$ century, the term ______ designated the systematic collection of demographic and economic data by states.

At the beginning of the $20^{th}$ century, who developed the methods for decision making based on small set of data?

The word statistics have been derived from Latin word ______.

In which year history of statistics can be said to start around?

In the year $1602$, who used the word "statist" in his drama Hamlet?

Since the population size is always larger than the sample size, then the sample statistic -

Let $a$ and $b$, be positive real numbers. If $a,{A _1},{A _2},b$ are in $A.P$ and $a,{G _1},{G _2},b$ are in $G.P$ and $a,{H _1},{H _2},b$ are in $H.P$ ,then 
 $\frac{{{G _1}{G _2}}}{{{H _1}{H _2}}} = \frac{{{A _1} + {A _2}}}{{{H _1} + {H _2}}} = \frac{{\left( {2a + b} \right)\left( {a + 2b} \right)}}{{9ab}}$

The difference of maximum and minimum values in a data is called