Explain discrete data and continuous data and write their examples.

Note:This question given in text book seems to have error and the modified question is given below

Following are the scores of a batsman in $6$ overs of a cricket match:

How many fours did the batsman hit?

Following are the scores of a batsman in $6$ overs of a cricket match:

How many sixes did he hit?

 In a set of data, the lowest and the highest values are $15$ and $66$ respectively. Construct overlapping class intervals with the following class width.

$10$

Mr. Garg, Mr. Singh, Ms. Dubey and Ms. Neelam are four teachers in a school teaching classes $\mathrm{VI}$ to  $\mathrm{VIII}$. Mr. Garg can teach English and Science only. Mr. Singh can teach Mathematics and Science only. Ms. Neelam cannot teach Hindi. Ms. Dubey teaches only one subject and there is a teacher for all the subjects mentioned in the table below. 

Which subject can be taught by the maximum number of teachers?

Shoe size of $80$ students in a class are as follows:

$5,4,4,6,7,\mathrm{5,6},\mathrm{5,6},6,5,4,6,7,8,4,4$

Which size is worn by maximum number of students?

Using tally marks, the number $12$ is represented by: 

The weights of $20$ marbles (in grams) are given below:

$52, 36, 44, 38, 36, 42, 31, 25, 32, 48, 44, 46, 38, 36, 45, 30, 50, 40, 38, 32$

Arrange the above data in a tabular form.

The expenditure of a company during the year $2009$ under different heads is given below. What is the total expenditure of the year.

Mr Garg, Mr Singh, Ms Dubey and Ms Neelam are four teachers in a school teaching classes $\mathrm{VI}$ to $\mathrm{VIII}$. Mr Garg can teach English and Science only. Mr Singh can teach Mathematics and Science only. Ms Neelam cannot teach Hindi. Ms Dubey teaches only one subject and there is a teacher for all the subjects mentioned in the table below. Fill in the table using ($/$) and ($\mathrm{X}$) and answer the questions that follow.

How many teachers can teach exactly two subjects$?$

The result of pass percentage of class $\mathrm{X}$ in Board examination of $20$ government schools in a locality in year $2009$ is given below:

$66,70,90,95,90,80,75,82,74,65,66,70,90,90,85,82,75,70,75,90$

b. How many schools had pass percentage of $90\%$.

In a school there are four sections of class $VI$. The number of students in each section is given below: