The following are the ages (in years) of 12 teachers in a school :
36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40
Arrange the above data in an ascending order and answer the questions given below:
What is the age of the eldest teacher in the school?

The following are the ages (in years) of 12 teachers in a school : 36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40 Arrange the above data in an ascending order and answer the questions given below: What is the age of the youngest teacher in the school?

The following are the ages (in years) of 12 teachers in a school : 36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40 Arrange the above data in an ascending order and answer the questions given below: What is the mean age of the teachers in the school?

The following are the ages (in years) of 12 teachers in a school : 36, 44, 39, 46, 35, 53, 38, 42, 55, 45, 49, 40 Arrange the above data in an ascending order and answer the questions given below: What is the range of the ages of the teachers in the school?

The ages in years of 10 teachers of a school are: 32, 41, 28, 54, 35, 26, 23, 33, 38, 40 (i) What is the age of the oldest teacher and that of the youngest teacher? (ii) What is the range of the ages of the teachers? (iii) What is the mean age of these teachers?

The ages in years of 10 teachers of a school are:32, 41, 28, 54, 35, 26, 23, 33, 38, 40(i) What is the age of the oldest teacher and that of the youngest teacher?(ii) What is the range of the ages of the teachers?(iii) What is the mean age of these teachers?

The marks of 10 students of a class in an examination arranged in ascending order are as follows : 13, 35, 43, 46, x, x + 4, 55, 61, 71, 80 If the median marks is 48, find the value of x. Hence find the mode of the given data.

The final marks in mathematics of 30 students are as follows:53, 61, 48, 60, 78, 68, 55, 100,67,90 75,88,77,37,84,58,60,48,62,56 44, 58, 52, 64, 98, 59, 70, 39, 50, 60 (i) Arrange these marks in the ascending order. 30 to 39 one group, 40 to 49 second group, etc. (ii) What is the highest score? (iii) What is the lowest score? (iv) What is the range?

The mean ago of 25 teachers in a schools is 40 years. A teacher retires at the age of 60 years and a new teacher is appointed in his place . If now the mean age of the teachers in this schools is 39 years, then the age (in years) of the newly appointed teacher is

The final marks in mathematics of 30 students are as follows: 53,61,48,60,78,68,55,100,67,90,75,88,77,37,84 58,60,48,62,56,44,58,52,64,98,59,70,39,50,60 Arrange these marks in the ascending order, 30 to 39 one group, 40 to 49 second group etc. Now answer the following: What is the highest score? What is the lowest score? What is the range? If 40 is the pass marks how many have failed? How many have scored 75 or more? Which observations between 50 and 60 have not actually appeared? How many have scored less than 50?

The following bar graph (Figure) represents the heights (in cm) of 50 students of Class XI of a particular school. Study the graph and answer the following questions: What percentage of the total number of students have their heights more than 149 cm? How many students in the class are in the range of maximum height of the class? The school wants to provide a particular type of tonic to each student below the height of 150cm to improve his height. If the cost of the tonic for each student comes out to be Rs. 55, how much amount of money is required? How many students are in the range of shortest height of the class? State whether true or false: There are 9 students in the class whose heights are in the range of 155-159 cm. Maximum height (in cm) of a student in the class is 17. There are 29 students in the class whose heights are in the range of 145-154 cm. Minimum height (in cm) of a student is the class is in the range of 140-144cms. The number of students in the class having their heights less than 150cm is 12. There are 14 students each of whom has height more than 154 cm.