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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

The following table shows the classification of percentages of marks of students and the number of students. Draw a frequency polygon from the table. Result (Percentage) 30 - 40 40 - 50 50 - 60 60

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प्रश्न

The following table shows the classification of percentages of marks of students and the number of students. Draw a frequency polygon from the table.
Result (Percentage) 30 - 40 40 - 50 50 - 60 60 -70 70 - 80 80 - 90 90 - 100
No. of students 7 33 45 65 47 18 5
आलेख
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उत्तर

Consider the following table:

Class
(Result in %)
Class Mark Frequency 
(Number of students)
Coordinates of points
20 - 30 25 0 (25, 0)
30 - 40 35 7 (35, 7)
40 - 50 45 33 (45, 33)
50 - 60 55 45 (55, 45)
60 - 70 65 65 (65, 65)
70 - 80 75 47 (75, 47)
80 - 90 85 18 (85, 18)
90 - 100 95 5 (95, 5)
100 - 110 105 0 (105, 0)

The frequency polygon using the class mark and frequency given in the above table
 
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पाठ 6: Statistics - Practice Set 6.5 [पृष्ठ १५७]

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बालभारती Algebra Mathematics 1 [English] Standard 10 Maharashtra State Board
पाठ 6 Statistics
Practice Set 6.5 | Q 3 | पृष्ठ १५७

संबंधित प्रश्‍न

Given below is the frequency distribution of driving speeds (in km/hour) of the vehicles of 400 college students:

Speed (in km/hr) No. of Students
20-30 6
30-40 80
40-50 156
50-60 98

60-70
60

Draw Histogram and hence the frequency polygon for the above data.


Draw histogram for the following frequency distributions: 

Class Interval  10 – 16 16 – 22 22 – 28 28 – 34 34 – 40
Frequency  15 23 30 20 16 

Draw histogram for the following frequency distributions: 

Class Interval  30 – 39 40 – 49 50 – 59 60 – 69 70 – 79
 Frequency  24 16 09 15 20

In the following table, the investment made by 210 families is shown. Present it in the form of a histogram.

Investment
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10 - 15 15 - 20 20 - 25 25 - 30 30 - 35
No. of families 30 50 60 55 15

Construct a histogram for the following data:

Monthly school fee (in Rs): 30−60 60−90 90−120 120−150 150−180 180−210 210−240
Number of schools: 5 12 14 18 10 9 4

Draw a histogram for the daily earnings of 30 drug stores in the following table:

Daily earnings (in Rs): 450−500 500−550 550−600 600−650 650−700
Numbers of stores: 16 10 7 3 1

Find the lower quartile, the upper quartile, the interquartile range and the semi-interquartile range for the following frequency distributions: 

Marks  25 30 35 40 45 50
No. of students 6 15 12 10 18 9

Represent the following data by histogram:

Price of sugar Per kg (in Rs)  Number of weeks 
28-30 4
30-32 8
32-34 22
34-36 12
36-38 6

Distribution of height in cm of 100 people is given below:

Class interval (cm) Frequency
145 - 155 3
155 - 165 35
165 - 175 25
175 - 185 15
185 - 195 20
195 - 205 2

Draw a histogram to represent the above data.


Identify the following data can be represented in a histogram?

The number of mountain climbers in the age group 20 to 60 in Tamil Nadu.


Identify the following data can be represented in a histogram?

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Identify the following data can be represented in a histogram?

The number of votes polled from 7 am to 6 pm in an election


Draw a histogram for the following data.

Class Interval 0 − 10 10 − 20 20 − 30 30 − 40 40 − 50 50 − 60
No. of students 5 15 23 20 10 7

Histogram is a graph of a ________ frequency distribution


The height of a rectangle in a histogram shows the ______.


In a histogram ______ are drawn with width equal to a class interval without leaving any gap in between.


The following pictorial representation of data is a histogram.


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  1. What is the class width?
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The table given below shows the runs scored by a cricket team during the overs of a match.

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30 – 40 45
40 – 50 40
50 – 60 60
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70 – 80 35

Use graph sheet for this question.

Take 2 cm = 10 overs along one axis and 2 cm = 10 runs along the other axis.

  1. Draw a histogram representing the above distribution.
  2. Estimate the modal runs scored.

After converting inclusive classes in a histogram, what is calculated next?


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