Why mcqs of class 11 Statistics lesson 3 Organisation of data is important ?
- these mcqs are important because these questions cover a wide topic of the chapter
- mcqs are easy to understand
- mcqs break the big topic in some small topic so they are easy to learn
- they give a short revision at the time of class 11 Statistics exam
How to get pdf of class 11 Statistics lesson 3 Organisation of data mcqs
Increasing role of mcqs in board exam
MCQ’S TEST
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1. ________ of the data refers to the arrangement of figures in such a form that comparison of the mass of similar data may be facilitated and further analysis may be possible
Analysis
Organization
Collection
Interpretation
Answer - B
Explanation - The data information collected through different sources should be organized. The information arranged in an ascending order is known as the array of data. The set of information related to a specific entity is called the field.
2. It is the process of arranging things in groups or classes according to their resemblances
Collection
Classification
Analysis
Interpretation
Answer - B
Explanation - The process of arranging data into homogenous groups or classes according to some common characteristics present in the data is called classification.
3. Continuous variable assumes _________
Increase in jumps
A range of values
Both
None
Answer - B
Explanation - If a variable can take on any value between its minimum value and its maximum value, it is called a continuous variable.
4. Classification data based on the geographical differences of the data is
Qualitative
Chronological
Quantitative
Spatial
Answer - D
Explanation - Spatial dependence is measured as the existence of statistical dependence in a collection of random variables, each of which is associated with a different geographical location.
5. Chronological classification is
Classification on the basis of quality
Classification on the basis quantity
Classification on the basis of time
Classification on the basis location
Answer - C
Explanation - When data are observed over a period of time the type of classification is known as chronological classification. Such type of classification helps to compare the data of different time periods.
6. A characteristics or a phenomenon which is capable of being measured and changes its value overtime is called
Sample
None
Vector
Variable
Answer - D
Explanation - Variables data is data that is acquired through measurements, such as length, time, diameter, strength, weight, temperature, density, thickness, pressure, and height. With variable data, you can decide the measurement’s degree of accuracy.
7. Which variable increase in jumps or in complete numbers
Discrete
Individual
Multiple
Continuous
Answer - A
Explanation - Discrete variable over a particular range of real values is one for which, for any value in the range that the variable is permitted to take on, there is a positive minimum distance to the nearest other permissible value. The number of permitted values is either finite or countably infinite.
8. Class limits means
Extreme values of a class are limits
Sum of upper or lower limits
A range of values which incorporates a set of items
Difference between upper or lower limits
Answer - A
Explanation - Class limits have the same accuracy as the data values; the same number of decimal places as the data values. The lower class limit of a class is the smallest data value that can go into the class. The upper class limit of a class is the largest data value that can go into the class.
9. Series of statistical data with one variable only is called
None
Continuous
Discrete
Individual Series
Answer - D
Explanation - A series of individual observations is a series in which items are listed individually.
10. The number of times an item occur in the series is known as
Class
Variable
Series
Frequency
Answer - D
Explanation - Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency, which emphasizes the contrast to spatial frequency and angular frequency
11. A range of values which incorporates a set of items is called
None
Class
Class limits
Magnitude of a class interval
Answer - B
Explanation - The range of values of a given class is called a class interval, the boundaries of an interval are called class limits, and the middle of a class interval is called the class mark
12. Difference between upper or lower limits
Class interval
Class
Class limits
Extreme class
Answer - A
Explanation - The range of values of a given class is called a class interval. It is defined as the difference between the upper class limit and the lower class limit.
13. Average value of the upper and lower limits
Class
Class limits
Class interval
Mid-value
Answer - D
Explanation - The mid-points of the class interval is obtained by calculating the mean of the lower and the upper limits of the intervals.The mid-points of class-intervals of various class groups are called mid-values. MV= (Lower limit + Upper limit) / 2.
14. An open-end class is the class which lacks
Both lower limit and higher limit
Lower limit
Either lower limit or higher limit
Higher limit
Answer - C
Explanation - If, in a frequency distribution, the initial class interval is indeterminate at its beginning and/or the final class interval is indeterminate at its end, the distribution is said to possess “open ended” classes. A class that has either no lower class limit or no upper class limit in a frequency table is called an open-end class.
15. Following are the types of frequency distribution except
Frequency array
Open ended
Exclusive
Cumulative frequency
Answer - A
Explanation - The repetition of a number in a data set is termed as the frequency of that particular number or the variable in which that number is assigned. The frequencies of variables in a data are to be listed in a table. This table is known as frequency distribution table and the list is referred to as frequency distribution.
There are many types of frequency distributions
Grouped frequency distribution
Ungrouped frequency distribution
Cumulative frequency distribution
Relative frequency distribution
Relative cumulative frequency distribution