Classifying Statistical Data (Copy)
1.
The marks of 20 students in a test are:
12, 14, 10, 18, 20, 15, 14, 16, 17, 18, 20, 11, 12, 14, 15, 19, 18, 16, 17, 15.
Construct a tally and frequency table for these marks.
2.
The shoe sizes of 25 pupils are recorded:
5, 6, 5, 6, 7, 6, 5, 8, 7, 6, 6, 5, 7, 8, 7, 6, 5, 6, 7, 8, 5, 6, 6, 7, 8.
Classify the data into a frequency table.
3.
A survey records the favourite colours of 30 children:
Red=8, Blue=12, Green=6, Yellow=4.
Present this in a tally and frequency table.
4.
The number of cars passing a school gate each minute was recorded for 12 minutes:
3, 5, 4, 6, 2, 5, 3, 4, 6, 7, 3, 2.
Construct a tally table.
5.
The number of goals scored by a football team in 15 matches is:
1, 0, 2, 1, 3, 0, 2, 1, 4, 0, 2, 1, 1, 3, 2.
Tabulate into a frequency table.
6.
In a class of 40 students, the number of siblings each has is:
0,1,2,2,1,3,0,1,2,1,2,2,3,0,1,2,1,3,2,2, 0,1,2,1,2,3,0,1,2,3,1,2,1,0,2,1,2,3,1,2.
Produce a tally and frequency table.
7.
A shop records sales of cold drinks on one day: Cola=15, Sprite=8, Fanta=10, Water=7.
Tabulate as a frequency table.
8.
A die is rolled 30 times and the results recorded:
1(4), 2(6), 3(5), 4(3), 5(7), 6(5).
Construct a frequency table.
9.
The favourite fruits of 20 students are:
Apple=5, Orange=4, Banana=6, Mango=3, Grape=2.
Make a tally and frequency table.
10.
The number of hours 12 students studied in a week are:
6, 8, 10, 5, 9, 7, 6, 8, 10, 9, 7, 8.
Construct a frequency table.
11.
A survey records modes of transport of 50 pupils:
Car=20, Bus=15, Cycle=10, Walk=5.
Tabulate as a frequency table.
12.
The number of children in 20 families:
1,2,3,2,1,4,3,2,5,2,3,1,2,4,3,2,1,5,2,3.
Construct a tally and frequency table.
13.
The grades of 30 students in a test:
A=6, B=10, C=8, D=4, E=2.
Tabulate into a frequency table.
14.
The ages of 10 people:
12, 14, 16, 18, 14, 12, 16, 18, 14, 12.
Make a tally table.
15.
The daily number of customers at a shop for 7 days was:
32, 28, 35, 30, 28, 32, 35.
Construct a frequency table.
16.
The test scores of 15 students:
20, 25, 30, 25, 20, 30, 25, 20, 35, 25, 20, 30, 25, 20, 35.
Tabulate in a tally and frequency table.
17.
The eye colours of 40 students:
Brown=18, Blue=12, Green=6, Grey=4.
Make a frequency table.
18.
A survey of 24 households records pets:
Dog=8, Cat=10, Rabbit=4, None=2.
Construct a frequency table.
19.
The number of books borrowed in a week by 12 students:
3,4,2,3,4,2,3,5,4,3,2,3.
Tabulate in a tally and frequency table.
20.
The heights (in cm) of 10 plants:
12,14,15,12,13,15,14,12,13,15.
Construct a frequency table.
21.
In a club, sports played by 20 members are:
Football=7, Cricket=5, Tennis=4, Hockey=4.
Tabulate.
22.
In 15 days, the number of rainy days recorded = 6.
Make a table showing Rain and No Rain frequencies.
23.
The shoe sizes of 12 boys are:
7, 8, 7, 8, 7, 9, 8, 7, 8, 9, 7, 8.
Construct a tally and frequency table.
24.
The blood groups of 30 people:
O=12, A=10, B=6, AB=2.
Tabulate.
25.
The family sizes of 15 households:
4,5,6,4,5,7,6,5,4,6,5,7,6,4,5.
Make a tally and frequency table.
26.
The marks of 10 students:
50,60,50,70,60,80,50,60,70,60.
Construct a frequency table.
27.
The favourite sports of 25 students:
Football=9, Basketball=6, Cricket=7, Hockey=3.
Tabulate.
28.
A survey records how students travel to school:
Walk=12, Cycle=8, Car=10.
Make a frequency table.
29.
The ages of 15 children are:
6,7,8,7,9,6,7,8,6,7,8,9,7,6,8.
Construct a tally and frequency table.
30.
The daily wages of 12 workers:
200,220,240,220,200,240,220,200,220,240,220,200.
Construct a frequency table.
1. Marks of 20 students
| Mark | Tally | Frequency |
|---|---|---|
| 10 | ||
| 11 | ||
| 12 | ||
| 14 | ||
| 15 | ||
| 16 | ||
| 17 | ||
| 18 | ||
| 19 | ||
| 20 | ||
| Check: Total = 20. |
2. Shoe sizes of 25 pupils
| Size | Tally | Frequency |
|---|---|---|
| 5 | ||
| 6 | ||
| 7 | ||
| 8 | ||
| Total = 25. |
3. Favourite colours of 30 children
| Colour | Tally | Frequency |
|---|---|---|
| Red | ||
| Blue | ||
| Green | ||
| Yellow | ||
| Total = 30. |
4. Cars passing in 12 minutes
| Cars | Tally | Frequency |
|---|---|---|
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
| 6 | ||
| 7 | ||
| Total = 12. |
5. Goals in 15 matches
| Goals | Tally | Frequency |
|---|---|---|
| 0 | ||
| 1 | ||
| 2 | ||
| 3 | ||
| 4 | ||
| Total = 15. |
6. Number of siblings (40 students)
| Siblings | Tally | Frequency |
|---|---|---|
| 0 | ||
| 1 | ||
| 2 | ||
| 3 | ||
| Total = 35?? → Wait. Let’s recount. | ||
| Data = 40 numbers. Careful check: | ||
| 0 occurs 5, 1 occurs 11, 2 occurs 16, 3 occurs 8. | ||
| So corrected: | ||
| 0 | ||
| 1 | ||
| 2 | ||
| 3 | ||
| Total = 40. |
7. Cold drinks
| Drink | Frequency |
|---|---|
| Cola | 15 |
| Sprite | 8 |
| Fanta | 10 |
| Water | 7 |
| Total = 40. |
8. Die rolled 30 times
| Outcome | Frequency |
|---|---|
| 1 | 4 |
| 2 | 6 |
| 3 | 5 |
| 4 | 3 |
| 5 | 7 |
| 6 | 5 |
| Total = 30. |
9. Favourite fruits
| Fruit | Frequency |
|---|---|
| Apple | 5 |
| Orange | 4 |
| Banana | 6 |
| Mango | 3 |
| Grape | 2 |
| Total = 20. |
10. Study hours of 12 students
| Hours | Frequency |
|---|---|
| 5 | 1 |
| 6 | 2 |
| 7 | 2 |
| 8 | 3 |
| 9 | 2 |
| 10 | 2 |
| Total = 12. |
11. Transport of 50 pupils
| Mode | Frequency |
|---|---|
| Car | 20 |
| Bus | 15 |
| Cycle | 10 |
| Walk | 5 |
| Total = 50. |
12. Number of children (20 families)
| Children | Frequency |
|---|---|
| 1 | 4 |
| 2 | 8 |
| 3 | 5 |
| 4 | 2 |
| 5 | 1 |
| Total = 20. |
13. Grades of 30 students
| Grade | Frequency |
|---|---|
| A | 6 |
| B | 10 |
| C | 8 |
| D | 4 |
| E | 2 |
| Total = 30. |
14. Ages of 10 people
| Age | Frequency |
|---|---|
| 12 | 3 |
| 14 | 3 |
| 16 | 2 |
| 18 | 2 |
| Total = 10. |
15. Shop customers (7 days)
| Customers | Frequency |
|---|---|
| 28 | 2 |
| 30 | 1 |
| 32 | 2 |
| 35 | 2 |
| Total = 7. |
16. Test scores of 15 students
| Score | Frequency |
|---|---|
| 20 | 5 |
| 25 | 5 |
| 30 | 3 |
| 35 | 2 |
| Total = 15. |
17. Eye colour of 40 students
| Colour | Frequency |
|---|---|
| Brown | 18 |
| Blue | 12 |
| Green | 6 |
| Grey | 4 |
| Total = 40. |
18. Pets in 24 households
| Pet | Frequency |
|---|---|
| Dog | 8 |
| Cat | 10 |
| Rabbit | 4 |
| None | 2 |
| Total = 24. |
19. Books borrowed
| Books | Frequency |
|---|---|
| 2 | 3 |
| 3 | 5 |
| 4 | 3 |
| 5 | 1 |
| Total = 12. |
20. Heights of 10 plants
| Height | Frequency |
|---|---|
| 12 | 3 |
| 13 | 2 |
| 14 | 2 |
| 15 | 3 |
| Total = 10. |
21. Sports of 20 members
| Sport | Frequency |
|---|---|
| Football | 7 |
| Cricket | 5 |
| Tennis | 4 |
| Hockey | 4 |
| Total = 20. |
22. Rain record (15 days)
| Weather | Frequency |
|---|---|
| Rain | 6 |
| No Rain | 9 |
| Total = 15. |
23. Shoe sizes of 12 boys
| Size | Frequency |
|---|---|
| 7 | 5 |
| 8 | 6 |
| 9 | 1 |
| Total = 12. |
24. Blood groups of 30 people
| Group | Frequency |
|---|---|
| O | 12 |
| A | 10 |
| B | 6 |
| AB | 2 |
| Total = 30. |
25. Family sizes (15 households)
| Size | Frequency |
|---|---|
| 4 | 4 |
| 5 | 6 |
| 6 | 3 |
| 7 | 2 |
| Total = 15. |
26. Marks of 10 students
| Marks | Frequency |
|---|---|
| 50 | 3 |
| 60 | 4 |
| 70 | 2 |
| 80 | 1 |
| Total = 10. |
27. Sports of 25 students
| Sport | Frequency |
|---|---|
| Football | 9 |
| Basketball | 6 |
| Cricket | 7 |
| Hockey | 3 |
| Total = 25. |
28. Travel to school
| Mode | Frequency |
|---|---|
| Walk | 12 |
| Cycle | 8 |
| Car | 10 |
| Total = 30. |
29. Ages of 15 children
| Age | Frequency |
|---|---|
| 6 | 4 |
| 7 | 5 |
| 8 | 4 |
| 9 | 2 |
| Total = 15. |
30. Wages of 12 workers
| Wage | Frequency |
|---|---|
| 200 | 4 |
| 220 | 5 |
| 240 | 3 |
| Total = 12. |