Tag: statistics

Questions Related to statistics

A simple table represents __________.

  1. only one factor or variable

  2. always two factors or variable

  3. Two or more number of factors or Variavles

  4. all the above


Correct Option: A

Whether tabulation is done first or classification?

  1. Both are done simultaneously

  2. Classification precedes tabulation

  3. Classification follows tabulation

  4. No criterion


Correct Option: B

The headings of the rows given in the first column of a table are called ________.

  1. stubs

  2. captions

  3. sub titles

  4. prefatory notes


Correct Option: A

Numerical data presented in descriptive form are called ________.

  1. classified presentation

  2. tabular presentation

  3. graphical presentation

  4. textual presentation


Correct Option: D

A complex table represents _______.

  1. only one factor or variable

  2. always two factors or variables

  3. two or more factors or variables

  4. all the above


Correct Option: C

What percentage of values is less than 4th decile?

  1. $50\%$

  2. $70\%$

  3. $40\%$

  4. None of the above


Correct Option: A

The following series is of the type of 

Marks No.of students
10-15 20
15-20 21
20-25 26
25-30 15
30-35 7
35-40 3
  1. Discrete

  2. Continious

  3. Individual

  4. Time series


Correct Option: B

The following series is of the type of 

Person Age(in years)
A 35
B 23
C 26
D 32
E 30
  1. Individual

  2. Discreate

  3. Geographical

  4. Times series


Correct Option: A

In an ordered series, the data are ________.

  1. in descending order

  2. in ascending order

  3. either (1) or (b)

  4. neither (a) nor (b)


Correct Option: C

Class mark of class interval 60 - 70 is

  1. 60

  2. 70

  3. 65

  4. 75


Correct Option: C
Explanation:

Class mark is the mid point of the class interval.

Therefore, the class mark for the interval $60-70$ is $\dfrac{60+70}{2}=\dfrac{130}{2}=65$