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MATHS M.C.Q

Graphical Representation of Statistical Data · Rajasthan Board (RBSE) STD 9 (Rajasthan - English Medium). 8 questions.

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M.C.Q

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8 questions · timed · auto-graded

Question 11 Mark
In a histogram the class intervals or the group are taken along:
  1. Y-axis.
  2. X-axis.
  3. Both of X-axis and Y-axis.
  4. In between X and Y axis.
Answer
  1. X-axis.
Solution:
In a histogram the class intervals or the groups are taken along the horizontal axis or X−axis.
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Question 21 Mark
A frequency polygon is constructed by plotting frequency of the class interval and the:
  1. Upper limit of the class.
  2. Lower limit of the class.
  3. Mid value of the class.
  4. Any values of the class.
Answer
  1. Mid value of the class.
Solution:
Frequency polygon is the plot of frequencies vs. the mid values of the classes.
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Question 31 Mark
In the 'less than' type of ogive the cumulative frequency is plotted against:
  1. The lower limit of the concerned class interval.
  2. The upper limit of the concerned class interval.
  3. The mid-value of the concerned class interval.
  4. Any value of the concerned class interval.
Answer
  1. The upper limit of the concerned class interval.
Solution:
In the less than type of ogive the cumulative frequency is plotted against the upper limit of the concerned class interval.
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Question 41 Mark
A histogram is a pictorial representation of the grouped data in which class intervals and frequency are respectively taken along:
  1. Vertical axis and horizontal axis.
  2. Vertical axis only.
  3. Horizontal axis only.
  4. Horizontal axis and vertical axis.
Answer
  1. Horizontal axis and vertical axis.
Solution:
In a histogram the class intervals and frequencies are taken along horizontal and vertical axes respectively.
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Question 51 Mark
Which one of the following is not the graphical representation of statistical data:
  1. Bar graph.
  2. Histogram.
  3. Frequency polygon.
  4. Cumulative frequency distribution.
Answer
  1.  Cumulative frequency distribution.
Solution:
We know that bar graph, histogram and frequency polygons are all graphical representation of statistical data.
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Question 61 Mark
In a histogram the area of each rectangle is proportional to:
  1. The class mark of the corresponding class interval.
  2. The class size of the corresponding class interval.
  3. Frequency of the corresponding class interval.
  4. Cumulative frequency of the corresponding class interval.
Answer
  1. Frequency of the corresponding class interval.
Solution:
In a histogram the area of each rectangle is proportional to the frequency of the corresponding class interval.
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Question 71 Mark
In a histogram, each class rectangle is constructed with base as:
  1. Frequency.
  2. Class-intervals.
  3. Range.
  4. Size of the class.
Answer
  1. Class-intervals.
Solution:
In a histogram, the class rectangles are constructed with base as the class−intervals.
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Question 81 Mark
In a frequency distribution, ogives are graphical representation of:
  1. Frequency.
  2. Relative frequency.
  3. Cumulative frequency.
  4. Raw data.
Answer
  1. Cumulative frequency.
Solution:
In a frequency distribution, ogives are graphical representation of cumulative frequency.
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