The marks obtained by 25 students in a science test are given below. (Marks out of 30)

Using this data, answer the following question :

(1) What are the lowest marks obtained?

(2) How many students have obtained this lowest score?

(3) How many students have obtained 20 marks?

(4) What is the frequency of the score 27?

(5) How many students have scored more than 20 marks?

Some peas were shelled and the number of peas in each post was recorded.

Prepare a frequency table of the above data.

The ages (in years) of 40 children in a class are given below. Prepare a frequency table for this data

The heights in centimetres of 30 children in a class are given below. Present the data in a frequency table.

Observe the given frequency table and write the answers to the following questions.

(1) About how many families does the table give data?

(2) How many families have 3 members?

(3) How many families have 5 members?

(4) How many families have the maximum number of members?

(5) How many families have less than 4 members?