Formative Assessment
Project work
PRELIMINARY INFORMATION
Class: 10
Subject: Mathematics
Name of the Lesson/Unit: STATISTICS
No. of the Project:
Medium: English
Allotment of work:
(i) Collecting the information
(ii) Recording the data
(iii) Analysing the data
(iv) Presentation of the project
DETAILED INFORMATION OF THE PROJECT
1. Title of the Project: Blood groups of 40 students of your section participated in blood donation camp.
2. Objectives of the project:
(i) Preparing frequency distribution table for the collected data
(ii) Drawing bar graph to the given data
(iii) Finding the which group is most donated from the result.
3. Materials used: White papers, Graph sheets, Pen, Pencil and Eraser etc.
4. Procedure:
1. Introduction: Before we going to do the project, we have a minimum knowledge about “Mode, Bar Graph”.
2. Process:
‣ We went to the Blood donation camp held at our town by Rotary club/Lions club/Voluntary organization.
‣ All the students of our section donated blood and we collected information about the blood group type.
‣ Information:
‣ Frequency Distribution table:
From the table we know that mode of the data is “O” because it occurs 15 times which is the highest frequency.
Bar Graph:
5. ANALYSIS: Most of the students of blood camp have blood group “O”. So “O” is the mode.
6. Conclusion: From the analysis we can infer that majority of the donors have blood group “O”
7. Experiences of the students:
(i) We enjoyed while preparing the project.
(ii) We think it is very useful to know the blood group of everyone by himself/herself.
6. Doubts & Questions:
1. Is it possible to find the mode of data like this?
2. Is mode is sufficient to find average of data like this?
7. Acknowledgement:
1. Convey my sincere thanks to our Headmaster to allow us to complete the work
2. Convey my sincere thanks to our Mathematics Teacher for guiding us in preparing the project work.
8. Reference Books/Resources:
1. Class – X & Class VIII Mathematics text books
2. NCERT Lab manual
9. Signature of the student(s):
FORMATIVE ASSESSMENT
Slip Test on Statistics
MATHEMATICS
CLASS: X TIME: 45 min.
Name of the Student: Sec.:, Roll No.
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I. Answer the following questions. 3 × 2 = 6 marks
1. Find ‘x’ if the median of the observations in ascending order 24, 25, x + 2, x + 3, 30, 31, 34 is 27.5?
2. Write the formula for mean by step deviation method? Explain each term in it?
3. Find the mean of x, x + 1, x + 2, x + 3, x + 4, x + 5 and x + 6?
II. Answer the following questions. 2 × 1 = 2 marks
4. Find the mean of first “n” natural numbers.
5. Define the mean for ungrouped data?
III. Answer the following questions. 2 × 4 = 8 marks
6. The following distribution shows the daily pocket allowance of children of a locality. The mean pocket allowance is Rs.18. Find the missing frequency ‘f’
7. Find the median of the following data.
IV. Choose the correct option and put the capital letter in the given bracket 8 × ½ = 4 marks
8. Mean of the first 10 natural numbers is [ ]
A. 5 B. 6 C. 5.5 D. 6.5
9. If mean of 4, 6, 8, 10, x, 14, 16 is 10 then the value of ‘x’ is [ ]
A. 11 B. 12 C. 13 D. 9
10. The median of 2, 3, 2, 5, 6, 9, 10, 12, 16, 18 and 20 is [ ]
A. 9 B. 20 C. 10 D. 9.5
11. If the mode of 2, 3, 5, 4, 2, 6, 3, 5, 5, 2 and x is 2 then the value of ‘x’ is [ ]
A. 2 B. 3 C. 4 D. 5
12. A teacher ask the students to find the average marks obtained by the class students in Maths the student will find [ ]
A. Mean B. Median C. Mode D. Sum
13. Class mark of the class 19.5 – 29.5 is [ ]
A. 10 B. 49 C. 24.5 D. 25
14. Which of the following is not a measure of central tendency? [ ]
A. Mean B. Median C. Range D. Mode
15. Measure of central tendency is represented by the abscissa of the point where the ‘less than ogive’ and ‘greater than ogive’ intersect, is [ ]
A. Mean B. Median C. Mode D. Range
