English

Explain the Difference Between a Frequency Distribution and a Cumulative Frequency Distribution. - Mathematics

Advertisements
Advertisements

Question

Explain the difference between a frequency distribution and a cumulative frequency distribution.

Solution

Frequencies table or frequency distribution is a method to represent raw data in the form from which one can easily understand the information contained in a raw data , where as a table which plays the manner in which cumulative frequencies are distributed over various classes is called a cumulative frequency distribution.

shaalaa.com
  Is there an error in this question or solution?
Chapter 22: Tabular Representation of Statistical Data - Exercise 22.2 [Page 24]

APPEARS IN

RD Sharma Mathematics [English] Class 9
Chapter 22 Tabular Representation of Statistical Data
Exercise 22.2 | Q 2 | Page 24

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Find the mean, median and mode of the following data:

Class 0 – 50 50 – 100 100 – 150 150 – 200 200 – 250 250 – 300 300 - 350
Frequency 2 3 5 6 5 3 1

 


The table below shows the daily expenditure on food of 30 households in a locality:

Daily expenditure (in Rs) Number of households
100 – 150 6
150 – 200 7
200 – 250 12
250 – 300 3
300 – 350 2

Find the mean and median daily expenditure on food.

 


For a certain distribution, mode and median were found to be 1000 and 1250 respectively. Find mean for this distribution using an empirical relation.


In a class test, 50 students obtained marks as follows:

Marks obtained 0 – 20 20 – 40 40 – 60 60 – 80 80 – 100
Number of Students 4 6 25 10 5

In a class test, 50 students obtained marks as follows:


While calculating the mean of a given data by the assumed-mean method, the following
values were obtained.
`A=25, sum f_i d_i=110, sum f_i= 50`
Find the mean.


The observation 29, 32, 48, 50, x, x+2, 72, 78, 84, 95 are arranged in ascending order. What is the value of x if the median of the data is 63?


Define primary data and secondary data.


Explain the meaning of the following terms: True Class Limits


As the number of tosses of a coin increases, the ratio of the number of heads to the total number of tosses will be `1/2`. Is it correct? If not, write the correct one.  


The monthly pocket money of ten friends is given below:

₹ 80, ₹ 65, ₹ 35, ₹ 65, ₹ 50, ₹ 30, ₹ 60, ₹ 35, ₹ 65, ₹ 30

What is the lowest pocket money?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×