हिंदी

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 - Algebra

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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

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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अध्याय 6: Statistics - Practice Set 6.5 [पृष्ठ १५७]

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

संबंधित प्रश्न

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       Number of Weeks
18-20 4
20-22 8
22-24 22
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28-30 6

The shoppers who come to a departmental store are marked as: man (M), woman (W), boy (B) or girl (G). The following list gives the shoppers who came during the first hour in the morning

W W W G B W W M G G M M W W W W G B M W B G G M W W M M W W W M W B W G M W W W W G W M M W W M W G W M G W M M B G G W

Make a frequency distribution table using tally marks. Draw a bar graph to illustrate it.


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830, 835, 890, 810, 835, 836, 869, 845, 898, 890, 820, 860, 832, 833, 855, 845, 804, 808, 812, 840, 885, 835, 835, 836, 878, 840, 868, 890, 806, 840

Using tally marks make a frequency table with intervals as 800 − 810, 810 − 820 and so on.


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The following frequency distribution table shows marks obtained by 180 students in Mathematics examination. 

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0 – 10 25
10 – 20  x
20 – 30 30
30 – 40 2x
40 – 50 65

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Draw a histogram for the following frequency distribution.

Use of electricity (Unit)
50 - 70 70 - 90 90 - 110 110 - 130 130 - 150 150 - 170
No. of families 150 400 460 540 600 350

Draw histogram and hence the frequency polygon for the following frequency distribution:

Rainfall (in cm) No. of years
20-25 2
25-30 5
30-35 8
35-40 12
40-45 10
45-50 7

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Construct a histogram from the following distribution of total marks of 40 students in a class.

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20 – 22 8
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Show the following data by a frequency polygon:

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200 – 400 240
400 – 600 300
600 – 800 450
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