Tag: introduction to statistical method and econometrics

Quizzes (11) Questions (59)

Questions Related to introduction to statistical method and econometrics

Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

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

  1. Can never be larger than the population parameter

  2. Can never be equal to the population parameter

  3. Can never be zero

  4. Can never be smaller than the population parameter

  5. None of the above answers is correct.
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Sample statistic will depend upon the sample chosen. 
It can be less than, greater than, equal to population parameter. 
It can assume the value of zero.
Ans-Option $E$.

Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

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 
 $\frac{{{G _1}{G _2}}}{{{H _1}{H _2}}} = \frac{{{A _1} + {A _2}}}{{{H _1} + {H _2}}} = \frac{{\left( {2a + b} \right)\left( {a + 2b} \right)}}{{9ab}}$

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This is a known identity in sequences and series. For A.P., G.P., and H.P. inserted between a and b, the given ratios are equivalent to the expression provided.

Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

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

  1. class interval

  2. range

  3. frequency

  4. mean
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Suppose that we had a data $A=\left{a _1,a _2.........a _n\right}$then

$Max.A=a _k, 1\leq k\leq n$
$minA=a _j, 1\leq j\leq n$
then for every $a _i\in A$
$a _j\leq a _i \leq a _k$
So,
$a _k-a _j$ is called range of A

Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

Find the correct ascending order
$7, 5, 15, 12, 10, 11, 16$

  1. $5, 7, 10, 11, 12, 15, 16$
  2. $5, 7, 10, 11, 12, 16, 15$
  3. $5, 7, 11, 10, 12, 15, 16$

  4. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
Given order is $7,5,15,12,10,11,16$.
Ascending is low to high. 
Now rearranging the series, we get
$5,7,10,11,12,15,16$
Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

A numerical value used as a summary measure for a sample, such as sample mean, is known as a:

  1. population parameter

  2. sample parameter

  3. sample statistic

  4. population mean
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

If it pertains to sample it is called a statistic, if it pertains to the population it is called a parameter.
Ans-Option $C$.

Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

Find the correct descending order
$9.1, 3.7, 5.6, 8.3, 11.5, 10.6$

  1. $8.3,11.5, 10.6, 9.1, 5.6, 3.7$
  2. $11.5, 10.6, 9.1, 8.3, 5.6, 3.7$
  3. $11.5, 10.6, 9.1, 8.3, 3.7, 5.6$

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Given series is $9.1, 3.7, 5.6, 8.3, 11.5, 10.6$

Descending means high to low.
Therefore, descending order of the given series is $11.5, 10.6, 9.1, 8.3, 5.6, 3.7$.

Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs
Find the correct ascending order of $6.3, 5.9, 9.8, 12.3, 5.6, 4.7$.
  1. $4.7, 5.6,6.3,5.9. 9.8, 12.3$
  2. $4.7, 5.6, 5.9, 6.3, 12.3, 9.8$
  3. $4.7, 5.6, 5.9, 6.3, 9.8, 12.3$

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Given order is $6.3, 5.9, 9.8, 12.3, 5.6, 4.7$.
Ascending means low to high. 
Therefore, rearranging the given series again, we get $4.7, 5.6, 5.9, 6.3, 9.8, 12.3$
Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

Find the correct descending order
$2, 0, 3, 4, 1, 2, 3, 5$

  1. $5, 4, 3, 2,3, 2, 1, 0$
  2. $5, 4, 3, 3, 2, 2, 1, 0$
  3. $4,5, 3, 3, 2, 2, 1, 0$
  4. $5, 4, 3, 3, 2, 2, 0,1$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Given, series is $2,0,3,4,1,2,3,5$
Descending means high to low.
Therefore, the descending order is $5,4,3,3,2,2,1,0$.
Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

Which one of the following is not correct?

  1. Statistics is liable to be misused

  2. The data collected by the investigator to be used by himself are called primary data

  3. Statistical laws are exact

  4. Statistics do not take into account of individual cases
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

(A) Statistics is liable to be misused is wrong 

(B) the data collected by the investigator to be used simself are called primary data wrong
(C) Statistical laws are extract is correct
(D) statistics do not take into account of individual cases is wrong 
Then is the correct answer.

Multiple choice economics partition values introduction to statistics introduction to statistical method and econometrics frequency distribution tables and graphs

Which of the following represents statistical data?

  1. The names of owners of shops located in a shopping complex

  2. A list giving the names of all states of India

  3. A list of all European countries and their respective capital cities

  4. The volume of rainfall in a certain geographical area recorded every month for 24 consecutive months
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Statistical data refers to quantitative information collected for analysis. Rainfall volume recorded over time is numerical data, whereas lists of names or cities are qualitative or categorical lists.