Introduction to statistics - class-XII
| Description: introduction to statistics | |
| Number of Questions: 55 | |
| Created by: Arav Srivastava | |
| Tags: introduction to statistical method and econometrics partition values maths frequency distribution tables and graphs economics statistics and probability statistics |
A branch of mathematics dealing with the collection, analysis, interpretation, and presentation of masses of numerical data is called ______.
_______ are sets of mathematical equations that are used to analyze what is happening in the world around us.
______ helps in providing a better understanding and exact description of a phenomenon of nature.
______ helps in proper and efficient planning of a statistical inquiry in any field of study.
Statistics is the branch of mathematics that deals with the collection, organization, analysis, and interpretation of numerical ____.
________ helps in presenting complex data in a suitable tabular, diagrammatic and graphic form for an easy and clear comprehension of the data.
A contractor employed 18 labourers at Rs 12 per day 10 labourers at Rs 13.50 per day 5 labourers at Rs 25 per day and 2 labourers at Rs 42 per day The average wage of a labourer per day is
Bankers use ______ approaches to estimate the number of people who will be making deposits compared to the number of people requesting loans.
Number of students in your class is an example of ______.
Which one of the following is not correct ?
_____ deals with collection, organization and interpretation of data.
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
The lottery method is_________.
Which of the following operations is conducted after a gap of every ten years?
More practical and inexpensive method of sampling is__________.
In a random number table, each digit appears with___________.
In which of the following cases is direct personal observation method adopted?
In a predominantly illiterate area consisting of 10,000 population, data has to be collected from 10% of them. The appropriate technique for data collection would be ________.
The techniques of census investigation is advocated by its users because of _________________.
The amount of non-responses is maximum in ___________________.
In year $2011$, India has almost ____________ of world population.
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
A numerical value used as a summary measure for a sample, such as sample mean, is known as a:
Which one of the following is not correct?
Which of the following represents statistical data?
A double graph is useful for _____ of data
Who introduced the first book of statistics in its title "Contribution to Vital Statistics"?
______ was used by the British mainly for administrative and governmental bodies.
Which question can be answered by writing a numeral?
In order to draw meaningful inferences from any data, we need to _____ the data systematically
In which year was the word statistik used by German Gottfried Achenwall?
The _____ stastistik, first introduced by Gottfried achenwall (1749), originally designated the data analysis of the state.
The word statistics and statistical are derived from the Latin word status, means _______ state.
In $17^{th}$ century, which economist who used early statistical methods to analyses demographic data?
The _____ Empire was the first government to gather extensive data about population, area and wealth of territories that they controlled.
Who is the founder of mathematical statistics?
Which of the following is not a data collection method?
Which of the following is a data collection method?
If the population figures are given for each State of India, then the data can be classified as
The statistical data are of two types. These types are
Which one of the following represents statistical data?
The price of an article was increased by $r$%. Later the new price was decreased by $r$%. If the latest price was Re. $1$, then the original price was:
A set of annual numerical data, comparable over the years, is given for the last $12$ years.
Consider the following statements:
$1.$ The data is best represented by a broken line graph, each corner (turning point) representing the data of one year.
$2.$ Such a graph depicts the chronological change and also enables one to make a short-term forecast.
Which of the above statements is/are correct?
In industry statistics is applied in the following areas...