The blood groups of 30 students of class VIII are recorded as follows

represent this data in the form of frequency distribution table. Find our which is the most common and which is the rerest blood group among these students.

The blood group of 36 students of IX class are recorded as follows Represent the data in the form of frequency distribution table. Which is the most common and which is the rarest blood group among these students?

The blood groups of 30 students of class VIII 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 students ?

The blood groups of 30 students of Class VIII 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 students ?

Some students of class X donated for the welfare of old-age persons. Their contribution is shown in the following frequency distribution. Find the median and mode of their contribution.

The following table give marks of students in a test. The frequency of class 49-52 is missing. The mean of the given distribution is 47.2. Find the missing frequency.

Given below is a cumulative frequency distribution showing the marks secured by 50 students of a class: Form the frequency distribution table for the above data

A company manufactures car batteries of particular type. The life (in years) of 40 batteries was recorded as follows: Construct a grouped frequency distribution table with exclusive classes for this data, using class intervals of size 0.5 starting from the interval 2-2.5.

In annual day of a school, age-wise participation of students is shown in the following frequency distribution: Draw a 'less than type' ogive for the above data and from it find the median age.

A TV channel or organised SMS (Short Message Service) poll on prohibition on smoking giving options like A- complete prohibition, B- prohibited in public places only, C- not necessary, SMS results in one hour were Represent the amount of data is grouped frequency distribution table. How many appropriate answers were received? What was the majority of peoples' opinion?

A group of stvdents conducted a survey of their locality to collect the data regarding number of plants and recorded it in the following table : Find the mode for the above data.