# Grouping And Tabulation Of Data Free Doubts and Solutions

### CBSE - IX - Mathematics - Statistics

## the number 90 will be put in which class interval- 85-90 or 90-95.

**sajal2402**4th March 2018, 9:46 PM

### CBSE - IX - Mathematics - Statistics

## The small groups obtained on dividing all the observations are called ________ and the size is called _________.

**gujarsurjeet007**26th February 2018, 4:14 PM

### CBSE - IX - Mathematics - Statistics

The value of upto 50 decimal places is given below:

3.14159265358979323846264338327950288

(i) Make a frequency distribution of the digits from 0 to 9 after the decimal point.

(ii) What are the most and the least appearing digits?

3.14159265358979323846264338327950288

(i) Make a frequency distribution of the digits from 0 to 9 after the decimal point.

(ii) What are the most and the least appearing digits?

**Topperlearning User**18th August 2017, 11:10 AM

### CBSE - IX - Mathematics - Statistics

## The relative humidity in Delhi, for the month of July, this year as reported by the Meteorological Department is given below : 90, 97, 92, 95, 93, 95, 93, 85, 83, 85, 83, 77, 83, 77, 74, 60, 71, 65, 80, 87, 82, 81, 76, 61, 63, 58, 58, 56, 57, 54, 98 Present the data in the form of frequency distribution.

**Topperlearning User**18th August 2017, 11:10 AM

### CBSE - IX - Mathematics - Statistics

## Given below are the marks obtained by 50 students of class IX in a test of Hindi. 42, 21, 51, 37, 42, 37, 38, 42, 49, 52, 38, 53, 57, 47, 29, 59, 61, 33, 17, 71, 39, 43, 42, 39, 14, 7, 27, 19, 54, 51, 39, 43, 42, 16, 37, 67, 62, 39, 51, 53, 41, 53, 59, 37, 27, 33, 34, 42, 22, 31. With these data, form a less than type cumulative frequency table.(i) What is the range of marks. (ii) What can you conclude from the above data about the number of students who scored more than 35.

**Topperlearning User**18th August 2017, 11:08 AM

### CBSE - IX - Mathematics - Statistics

## The blood groups of 30 students are recorded as follows : A, B, O, A, AB, O, A, O, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A Prepare a frequency distribution table for the data.

**Topperlearning User**18th August 2017, 11:07 AM

### CBSE - IX - Mathematics - Statistics

## The following data shows IQs of some children. Represent it using the continuous frequency distribution.

**Topperlearning User**18th August 2017, 10:39 AM

### CBSE - IX - Mathematics - Statistics

## The range of a data is 45. The maximum value in the data is thrice the minimum value. So what are the minimum and maximum values in the data?

**Topperlearning User**23rd May 2016, 10:16 AM

### CBSE - IX - Mathematics - Statistics

## A company selected 2400 families at random and surveyed them to determine relationship between income level and the number of television sets at home. The information gathered is listed in the table below: Find the number of families (i) earning Rs. 10,000 to Rs. 13,000 per month and owning exactly 2 television sets. (ii) earning Rs. 16,000 or more per month and owning exactly 1 television set. (iii) not more than 1 television set and earnings less than Rs. 7,000.

**Topperlearning User**23rd May 2016, 10:15 AM

### CBSE - IX - Mathematics - Statistics

## The marks obtained by 40 students of class IX in Mathematics are given below: 81, 55, 68, 79, 85, 43, 29, 68, 54, 73, 47, 35, 72, 64, 95, 44, 50, 77, 64, 35, 79, 52, 45, 54, 70, 83, 62, 64, 72, 92, 84, 76, 63, 43, 54, 38, 73, 68, 52, 54 Prepare a grouped continuous frequency distribution table with class-size of 10 marks.

**Topperlearning User**1st April 2014, 12:41 PM

### CBSE - IX - Mathematics - Statistics

## The following is the data of 20 students' average marks in all subjects: 36 39 40 48 53 52 50 51 43 40 33 49 54 47 45 52 45 44 32 53 Form a grouped discontinuous frequency distribution table such that one of the classes is 46-50.

**Topperlearning User**1st April 2014, 12:36 PM

### CBSE - IX - Mathematics - Statistics

## The blood groups of 30 donors in a blood donation camp are recorded as follows:A, B, O, O, AB, O, A, O, B, A, O, B, A, O, O,A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O.Represent this data in the form of a frequency distribution table. Which is the most common and which is the rarest blood group among these donors?

**Topperlearning User**4th December 2013, 3:34 AM

### CBSE - IX - Mathematics - Statistics

## The relative humidity in Delhi, for the month of July, this year as reported by the Meteorological Department is given below:90, 97, 92, 95, 93, 95, 93, 85, 83, 85,83, 77, 83, 77, 74, 60, 71, 65, 80, 87,82, 81, 76, 61, 63, 58, 58, 56, 57, 54, 98Present the data in the form of frequency distribution.

**Topperlearning User**4th December 2013, 3:26 AM

### CBSE - IX - Mathematics - Statistics

## The distance, in km, from school to homes of thirty children is listed below: 16, 2, 3, 5, 12, 5, 8, 4, 8, 10, 3, 4, 12, 2, 8, 15, 1, 17, 6, 3, 2, 8, 5, 9, 6, 8, 7, 14, 12, 11. (i) Make a grouped frequency distribution table for this data, taking class width 5and one of the class intervals as 5 - 10. (ii) How many children live at a distance of more than 15 km from school?

**Topperlearning User**4th December 2013, 2:38 AM

### CBSE - IX - Mathematics - Statistics

## The following are the runs made by 22 players in a one day cricket series played between India and Pakistan. 79, 28, 45, 99, 3, 46, 8, 0, 3, 7, 75, 24, 73, 122, 46, 27, 16, 7, 100, 3, 67, 53 Construct a frequency distribution table for the above data with equal class intervals, one of these being 0 - 20 (20 not included).

**Topperlearning User**4th December 2013, 2:04 AM

### CBSE - IX - Mathematics - Statistics

## The electricity bills (in Rs.) of 25 houses in a certain locality are given below: 500, 440 ,100, 180, 150, 560, 300, 220, 300, 240, 150, 180, 120, 270, 420, 450, 250, 240, 200, 220, 140, 160, 250, 360, 470 Construct a grouped frequency table for this data with one of the class intervals as 100 - 200 (200 not included)

**Topperlearning User**4th December 2013, 12:46 AM

### CBSE - IX - Mathematics - Statistics

## Following are the marks obtained by 30 students in an examination: Taking class intervals 1-10, 11-20, ... make a frequency table for the above distribution.

**Topperlearning User**4th December 2013, 12:19 AM