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CCF Education Major - DSCC-12 (Statistics in Education) | University of Calcutta

Previous Year Questions
2025
EDUCATION — HONOURS
Paper : DSCC-12
(Statistics in Education)
Full Marks : 75
Bengali Version
ā§§। āϝে-āĻ•োāύো āϤিāύāϟি āĻĒ্āϰāĻļ্āύেāϰ āωāϤ্āϤāϰ āĻĻাāĻ“ :
(āĻ•) (āĻ…) āĻ•েāύ্āĻĻ্āϰীāϝ় āĻĒ্āϰāĻŦāĻŖāϤাāϰ āĻĒāϰিāĻŽাāĻĒāĻ—ুāϞি āĻ•ী āĻ•ী?
(āφ) āύিāĻŽ্āύāϞিāĻ–িāϤ āĻŦāĻŖ্āϟāύāϟিāϰ āĻ—āĻĄ় āĻ“ āφāĻĻāϰ্āĻļāĻŦিāϚ্āϝুāϤি āύিāϰ্āĻŖāϝ় āĻ•āϰো :
Scores 10-19 20-29 30-39 40-49 50-59 60-69 70-79
f 2 4 12 10 6 4 2
(āχ) āĻĒ্āϰāϤ্āϝেāĻ• āϏ্āĻ•োāϰেāϰ āϏাāĻĨে 5 āϝোāĻ— āĻ•āϰāϞে, āĻ—āĻĄ় āĻ“ āφāĻĻāϰ্āĻļ āĻŦিāϚ্āϝুāϤিāϰ āĻŽাāύ āĻ•ী āĻšāĻŦে? ā§Š+(⧍+ā§Ē)+ā§§
(āĻ–) (āĻ…) āύিāĻŽ্āύāϞিāĻ–িāϤ āĻŦāĻŖ্āϟāύāϟিāϰ āĻāĻ•āϟি āĻ“āϜাāχāĻ­ āφঁāĻ•ো :
Scores 35-39 40-44 45-49 50-54 55-59 60-64 65-69 70-74 75-79 80-84
f 1 2 4 5 8 12 9 5 3 1
(āφ) āĻ“āϜাāχāĻ­ āĻĨেāĻ•ে P25 āĻ“ 72-āĻāϰ PR-āĻāϰ āĻŽাāύ āύিāϰ্āĻŖāϝ় āĻ•āϰো।ā§Ģ+(⧍½+⧍½)
(āĻ•েāĻŦāϞāĻŽাāϤ্āϰ āĻŦ্āϝাāĻšāϤāĻĻৃāώ্āϟিāϏāĻŽ্āĻĒāύ্āύ āĻļিāĻ•্āώাāϰ্āĻĨীāĻĻেāϰ āϜāύ্āϝ)
(āĻ–) (āĻ…) āĻļāϤাংāĻļ āĻŦিāύ্āĻĻু āĻ“ āĻļāϤাংāĻļ āϏাāϰিāϰ āĻĒাāϰ্āĻĨāĻ•্āϝ āϞেāĻ–ো।
(āφ) āύিāĻŽ্āύāϞিāĻ–িāϤ āĻĒāϰিāϏংāĻ–্āϝা āĻŦিāĻ­াāϜāύ āĻĨেāĻ•ে P25 āĻāĻŦং 72-āĻāϰ PR-āĻāϰ āĻŽাāύ āύিāϰ্āϪ⧟ āĻ•āϰো :ā§Ē+ā§Š+ā§Š
Scores 35-39 40-44 45-49 50-54 55-59 60-64 65-69 70-74 75-79 80-84
f 1 2 4 5 8 12 9 5 3 1
(āĻ—) (āĻ…) āϏ্āĻ•িāωāύেāϏ āĻŦāϞāϤে āĻ•ী āĻŦোāĻো? āĻŦিāĻ­িāύ্āύ āĻĒ্āϰāĻ•াāϰেāϰ āϏ্āĻ•িāωāύেāϏ āωāĻĒāϝুāĻ•্āϤ āϚিāϤ্āϰāϏāĻš āφāϞোāϚāύা āĻ•āϰো।
(āφ) āύিāĻŽ্āύāϞিāĻ–িāϤ āĻŦāĻŖ্āϟāύāϟিāϰ āϏ্āĻ•িāωāύেāϏ āύিāϰ্āĻŖāϝ় āĻ•āϰো :
Scores 15-17 18-20 21-23 24-26 27-29 30-32 33-35 36-38 39-41
f 2 1 2 5 9 7 18 3 3
ā§§+ā§Ē+ā§Ģ
(āϘ) (āĻ…) āϏāĻšāĻ—āϤি āĻ•ী? āϏāĻšāĻ—āϤিāϰ āĻĒ্āϰāĻ•াāϰāĻ­েāĻĻāĻ—ুāϞি āĻ•ী āĻ•ী?
(āφ) āύিāĻŽ্āύāϞিāĻ–িāϤ āϏ্āĻ•োāϰেāϰ Product Moment āĻĒāĻĻ্āϧāϤিāϰ āϏাāĻšাāϝ্āϝে āϏāĻšāĻ—āϤি āϏāĻšāĻ—াāĻ™্āĻ•েāϰ āĻŽাāύ āύিāϰ্āĻŖāϝ় āĻ•āϰো āĻ“ āĻĢāϞাāĻĢāϞ āĻŦ্āϝাāĻ–্āϝা āĻ•āϰো :
A B C D E F G H I J K L
X 24 20 18 17 15 12 10 8 6 5 4 2
Y 13 9 12 20 11 16 5 2 7 6 3 1
ā§§+ā§Š+ā§Ģ+ā§§
⧍। āϝে-āĻ•োāύো āĻĒাঁāϚāϟি āĻĒ্āϰāĻļ্āύেāϰ āωāϤ্āϤāϰ āĻĻাāĻ“ :
ā§Ģ × ā§Ģ
(āĻ•) āĻļিāĻ•্āώাāĻ•্āώেāϤ্āϰে āϰাāĻļিāĻŦিāϜ্āĻžাāύেāϰ āĻĒাঁāϚāϟি āĻŦ্āϝāĻŦāĻšাāϰ āωāϞ্āϞেāĻ– āĻ•āϰো।
(āĻ–) āĻšিāϏ্āϟোāĻ—্āϰাāĻŽ āĻ•ী? āύিāĻŽ্āύāϞিāĻ–িāϤ āĻŦāĻŖ্āϟāύāϟিāϰ āĻāĻ•āϟি āĻšিāϏ্āϟোāĻ—্āϰাāĻŽ āφঁāĻ•ো।
Scores 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99
f 1 5 2 10 9 7 0 6
ā§§+ā§Ē
(āĻ•েāĻŦāϞāĻŽাāϤ্āϰ āĻŦ্āϝাāĻšāϤāĻĻৃāώ্āϟিāϏāĻŽ্āĻĒāύ্āύ āĻļিāĻ•্āώাāϰ্āĻĨীāĻĻেāϰ āϜāύ্āϝ)
(āĻ–) āĻĒāϰিāĻŦāϰ্āϤিāϤ āϏ্āĻ•োāϰ āĻŦāϞāϤে āĻ•ী āĻŦোāĻো? Z Score-āĻāϰ āĻŦ্āϝāĻŦāĻšাāϰ āϞেāĻ–ো। ⧍+ā§Š
(āĻ—) āϏ্āĻŦাāĻ­াāĻŦিāĻ• āĻŦāĻŖ্āϟāύেāϰ āϞেāĻ–āϚিāϤ্āϰেāϰ āĻŦৈāĻļিāώ্āϟ্āϝāĻ—ুāϞি āωāĻĒāϝুāĻ•্āϤ āϚিāϤ্āϰ āϏāĻšāĻ•াāϰে āĻŦ্āϝাāĻ–্āϝা āĻ•āϰো।
(āϘ) āĻŦিāώāĻŽāϤাāϰ āĻĒāϰিāĻŽাāĻĒ āĻŦāϞāϤে āĻ•ী āĻŦোāĻো? āφāĻĻāϰ্āĻļāĻŦিāϚ্āϝুāϤিāϰ āĻŦৈāĻļিāώ্āϟ্āϝ āĻ“ āĻŦ্āϝāĻŦāĻšাāϰ āϞেāĻ–ো। ā§§+(⧍+⧍)
(āĻ™) āĻāĻ•āϟি āĻ›াāϤ্āϰেāϰ āĻ…āĻ™্āĻ•েāϰ āϏ্āĻ•োāϰ = 55 āϝেāĻ–াāύে āĻ•্āϞাāϏেāϰ āĻ—āĻĄ় = 60 āĻ“ SD = 10। āϏেāχ āĻ›াāϤ্āϰেāϰ āχংāϰেāϜি āĻĒāϰীāĻ•্āώাāϰ āϏ্āĻ•োāϰ = 28, āϝেāĻ–াāύে āĻ•্āϞাāϏেāϰ āĻ—āĻĄ়=26 āĻ“ SD = 4। T āϏ্āĻ•োāϰ āύিāϰ্āĻŖāϝ় āĻ•āϰে āĻ›াāϤ্āϰāϟিāϰ āĻāχ āĻĻুāϟি āĻŦিāώāϝ়েāϰ āĻĒাāϰāĻĻāϰ্āĻļিāϤাāϰ āϤুāϞāύা āĻ•āϰো।
(āϚ) āϏাāϰি āĻĒাāϰ্āĻĨāĻ•্āϝ (Rank Difference) āĻĒāĻĻ্āϧāϤি āĻ…āĻŦāϞāĻŽ্āĻŦāύ āĻ•āϰে āϏāĻšāĻ—āϤি āϏāĻšāĻ—াāĻ™্āĻ•েāϰ āĻŽাāύ āύিāϰ্āĻŖāϝ় āĻ•āϰো।
A B C D E F G H I J
X 48 33 40 9 16 65 16 24 16 57
Y 13 13 24 6 15 20 4 9 6 19
ā§Š। āύিāĻŽ্āύāϞিāĻ–িāϤ āĻĒ্āϰāĻļ্āύāĻ—ুāϞিāϰ āωāϤ্āϤāϰ āĻĻাāĻ“ :
⧍ × ā§§ā§Ļ
(āĻ•) āωāĻĻাāĻšāϰāĻŖ āĻĨেāĻ•ে āϚāϞেāϰ āĻĒ্āϰāĻ•াāϰ (āĻŦিāϚ্āĻ›িāύ্āύ/āĻ…āĻŦিāϚ্āĻ›িāύ্āύ) āύিāϰ্āĻŖāϝ় āĻ•āϰো :
(āĻ…) āĻāĻ•āϜāύ āĻ›াāϤ্āϰেāϰ āĻ•āϞেāϜে āωāĻĒāϏ্āĻĨিāϤিāϰ āĻĻিāύেāϰ āϏংāĻ–্āϝা।
(āφ) āĻ›াāϤ্āϰেāϰ āωāϚ্āϚāϤা।
(āĻ–) āĻĒāϰিāϏংāĻ–্āϝা āĻŦিāĻ­াāϜāύেāϰ āĻĻুāϟি āĻŦ্āϝāĻŦāĻšাāϰ āϞেāĻ–ো।
(āĻ—) āύিāĻŽ্āύāϞিāĻ–িāϤ āϏ্āĻ•োāϰāĻ—ুāϞিāϰ āĻŽāϧ্āϝāĻŽা āĻ“ āĻ­ূāϝ়িāώ্āĻ āĻ• āύিāϰ্āĻŖāϝ় āĻ•āϰো :
6, 10, 7, 4, 6, 7, 9, 6
(āϘ) āĻāĻ•āϟি āĻŦāĻŖ্āϟāύেāϰ āĻ—āĻĄ় āĻ“ āĻŽāϧ্āϝāĻŽা āϝāĻĨাāĻ•্āϰāĻŽে 26.8 āĻ“ 27.9। āĻŦāĻŖ্āϟāύāϟিāϰ āĻ­ূāϝ়িāώ্āĻ āĻ• āύিāϰ্āĻŖāϝ় āĻ•āϰো। āĻāχ āĻŦāĻŖ্āϟāύেāϰ āφāĻ•ৃāϤি āϏāĻŽ্āĻĒāϰ্āĻ•ে āĻŽāύ্āϤāĻŦ্āϝ āĻ•āϰো।
(āĻ™) āĻāĻ•āϟি āĻļ্āϰেāĻŖিāϰ āĻŽāϧ্āϝāĻŽাāύ āϝāĻĻি 42 āĻšāϝ়, i = 5, āϤাāĻšāϞে āĻļ্āϰেāĻŖিāϏীāĻŽাāύা (Class boundary) āĻ•ী āĻšāĻŦে?
(āϚ) 12, 15, 24, 20, 11, 8 āϏ্āĻ•োāϰāĻ—ুāϞিāϰ āφāĻĻāϰ্āĻļāĻŦিāϚ্āϝুāϤি āύিāϰ্āĻŖāϝ় āĻ•āϰো।
(āĻ›) āĻļিāĻ•্āώাāĻ•্āώেāϤ্āϰে āϏ্āĻŦাāĻ­াāĻŦিāĻ• āĻŦāĻŖ্āϟāύেāϰ āϝে-āĻ•োāύো āĻĻুāϟি āĻŦ্āϝāĻŦāĻšাāϰ āωāϞ্āϞেāĻ– āĻ•āϰো।
(āϜ) āĻĻুāϟি āĻŦāĻŖ্āϟāύেāϰ āĻ•াāϰ্āϟোāϏিāϏ-āĻāϰ āĻŽাāύ āĻĨেāĻ•ে āϤাāϰ āĻĒ্āϰāĻ•াāϰ āύিāϰ্āĻŖāϝ় āĻ•āϰো :
(āĻ…) Ku = 0.375
(āφ) Ku = 0.102
(āĻ) āĻāĻ•āϟি āĻŦāĻŖ্āϟāύেāϰ Q1 = 25 āĻāĻŦং Q3 = 45। āĻŦāĻŖ্āϟāύāϟিāϰ āϚāϤুāϰ্āĻĨ্āϝাংāĻļ āĻŦিāϚ্āϝুāϤি āύিāϰ্āĻŖāϝ় āĻ•āϰো।
(āĻž) āύিāĻŽ্āύāϞিāĻ–িāϤ āĻĒāϰিāϏ্āĻĨিāϤিāϤে āĻ•ী āϧāϰāύেāϰ āϏāĻšāĻ—āϤি āĻšāϤে āĻĒাāϰে?
(āĻ…) āĻ“āϜāύ āĻ“ āĻŦৃāĻĻ্āϧি
(āφ) āĻ…āĻ™্āĻ•ে āĻ…āύুāĻļীāϞāύেāϰ āĻĒāϰিāĻŽাāĻŖ āĻ“ āĻ…āĻ™্āĻ•েāϰ āύāĻŽ্āĻŦāϰ।
English Version
1. Answer any three questions :
(a) (i) What are the measures of Central Tendency?
(ii) Determine the Mean and Standard Deviation (SD) of the following distribution :
Scores 10-19 20-29 30-39 40-49 50-59 60-69 70-79
f 2 4 12 10 6 4 2
(iii) If 5 is added to each score, what will be the value of Mean and SD? 3+(2+4)+1
(b) (i) Draw an Ogive of the following distribution :
Scores 35-39 40-44 45-49 50-54 55-59 60-64 65-69 70-74 75-79 80-84
f 1 2 4 5 8 12 9 5 3 1
(ii) Determine the values of P25 and PR of 72 from the Ogive. 5+(2½+2½)
(For Visually Challenged Candidates only)
(b) (i) Distinguish between Percentile Point and Percentile Rank.
(ii) Calculate P25 and PR of 72 from the following disffibution :4+3+3
Scores 35-39 40-44 45-49 50-54 55-59 60-64 65-69 70-74 75-79 80-84
f 1 2 4 5 8 12 9 5 3 1
(c) (i) What is meant by skewness? Discuss the different types of skewness with appropriate diagrams.
(ii) Calculate the skewness of the following distribution :
Scores 15-17 18-20 21-23 24-26 27-29 30-32 33-35 36-38 39-41
f 2 1 2 5 9 7 18 3 3
1+4+5
(d) (i) What is correlation? What are the types of correlation?
(ii) Calculate the Product Moment Coefficient of Correlation of the following scores and comment on the result :
A B C D E F G H I J K L
X 24 20 18 17 15 12 10 8 6 5 4 2
Y 13 9 12 20 11 16 5 2 7 6 3 1
(1+3)+5+1
2. Answer any five questions :
5 × 5
(a) Mention any five uses of Statistics in Education.
(b) What is Histogram? Draw a Histogram of the following distribution :
Scores 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99
f 1 5 2 10 9 7 0 6
1+4
(For Visually Challenged Candidates only)
(b) What do you mean by derived scores? Write the uses of Z-score. 2+3
(c) Explain the characteristics of the Normal curve with appropriate diagram.
(d) What do you mean by measures of variability? Write the properties and uses of Standard Deviation. 1+2+2
(e) A student scored 55 in Mathematics where the Mean of the class = 60 and SD = 10. The student scored 28 in English where the class mean = 26 and SD = 4. Calculate the T scores and compare the students' performance in these two subjects.
(f) Calculate the coefficient of correlation using Rank Difference method.
A B C D E F G H I J
X 48 33 40 9 16 65 16 24 16 57
Y 13 13 24 6 15 20 4 9 6 19
3. Answer the following questions :
2 × 10
(a) Identify the type of variable (discrete/continuous) from the following:
(i) Number of days a student attends college.
(ii) Height of students.
(b) Write two uses of frequency distribution.
(c) Calculate the Median and Mode of the following scores:
6, 10, 7, 4, 6, 7, 9, 6
(d) The Mean and Median of a distribution are 26.8 and 27.9 respectively. Calculate the Mode. Comment on the shape of the distribution.
(e) If the Midpoint of a class is 42, i = 5, what will be the class boundaries?
(f) Determine the SD of the following scores: 12, 15, 24, 20, 11, 8.
(g) Write any two applications of the Normal Distribution in the field of education.
(h) Determine the type of Kurtosis of two distributions from the values given below:
(i) Ku = 0.375
(ii) Ku = 0.102
(i) In a distribution Q1 = 25 and Q3 = 45. Determine the Quartile Deviation of the distribution.
(j) Which type of correlation is expected in the following?
(i) Weight and Intelligence
(ii) Amount of practice of sums and marks in Mathematics.
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