CBSE Questions for Class 11 Commerce Economics Organisation Of Data Quiz 2 - MCQExams.com

Consider the height of 10 students in a class given below:
$$55  ,      36  ,      95  ,      73  ,      60  ,      42  ,      25   ,     78   ,     75 ,       62$$
The observation is in the form of _____ data.
  • primary data
  • arrayed data
  • raw data
  • secondary data
The data obtained in the original form is called ______.
  • raw data
  • arrayed data
  • grouped data
  • secondary data
The normal or gaussian distribution is also called___________.
  • Probability curve
  • The error curve
  • The normal probability curve
  • All the above
Requisites of a good statistical average:
(I) It need not be firmly defined.
(II) It should be easy to understand but difficult to compute.
(III) The average should depend upon each and every item of the series. However, some of the extreme items in the series can be ignored.
Select the correct answer from the options given below.
  • (I)
  • (II)
  • (III)
  • None of the above
When the raw data is arranged in ascending or descending order, then the data is called _____.
  • processed data
  • secondary data
  • arrayed data
  • raw data
Which one of the following data is in form of arrayed data?
  • $$23, 45, 1, 89, 20, 10$$
  • $$23, 17, 3, 89, 90, 89$$
  • $$23, 25, 12, 8, 20, 56$$
  • $$1, 10, 20, 23, 45, 89$$
The number of traffic citations issued during last $$5$$ months in Mumbai city, is $$24, 30, 12, 11$$ and $$7$$. What kind of data is used?
  • processed data
  • secondary data
  • arrayed data
  • raw data
When we have a large number of observations, the data can be fitted in a ________.
  • two way classification table
  • one way classification table
  • three way classification table
  • none of the above
Length of the class $$11-20$$ is ______.
  • $$9$$
  • $$10$$
  • $$11$$
  • $$20$$
In a frequency distribution with classes $$(1-8),(9-16),(17-24).... $$the class interval is 
  • 8
  • 9
  • 7
  • 3
State whether the following statements are true (T) or false (F):
If the data is large, it is difficult to get information from raw data.
  • True
  • False
Count the tally marks.
637743_5602d2bc806d4140b7ea6402b2ba28f0.png
  • $$3$$
  • $$5$$
  • $$6$$
  • $$8$$
The range of $$15, 14, x, 25, 30, 35$$ is $$23$$. Find the least possible value of $$x$$.
  • $$14$$
  • $$12$$
  • $$13$$
  • $$11$$
$$0 - 10, 10 - 20, 20 - 30 ,...$$ are the classes, then the lower boundary of the class $$20 - 30$$ is _____
  • $$10$$
  • $$10.5$$
  • $$20$$
  • $$20.5$$
The following marks were obtained by the students in a test
$$81, 72, 90, 90, 86, 85, 92, 70, 71, 83, 89, 95, 85, 79, 62$$.
What is the range of the marks obtained?
  • $$9$$
  • $$17$$
  • $$27$$
  • $$33$$
If $$1 - 5, 6 - 10, 11 - 15, ...$$  are the classes of a frequency distribution then the size of the class is _____
  • $$4$$
  • $$5$$
  • $$3$$
  • $$2.5$$
Count the tally marks.
637745_8a3d2328ac844a04afa97c725fa11850.png
  • $$20$$
  • $$100$$
  • $$80$$
  • $$40$$
What is count on friday?
637747_e7cccb40b0b74e93983afe3f22d5b3d2.png
  • $$5$$
  • $$6$$
  • $$12$$
  • $$8$$
Classification of data or attributes on the basis of either the presence or the absence of a qualitative characteristic is called __________.
  • spatial classification
  • chronological classification
  • qualitative classification
  • time series
The classifications of theoretical distribution are ________.
  • normal and binomial distribution
  • binomial and poisson distribution
  • normal and poisson distribution
  • normal, binomial and poisson distribution
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