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

The ages in years of 10 teachers of a school are: 32, 41, 28, 54, 35, 26, 23, 33, 38, 41 What is the range of the ages of the teachers?

The ages of 30 teachers in a school are as follows: 25, 28, 43, 36, 27, 34, 50, 45, 30, 32, 51, 44, 33 31, 30, 35, 42, 45, 41, 47, 30, 34, 32, 35, 31, 36, 46, 56, 25, 36. 1. Make a frequency distribution table with intervals as 30-35. 2. Prepare a histogram of the above frequency distribution table.

Construct a grouped frequency table with class intervals 0-5, 5 -10 and so on for the following marks obtained in Biology (out of 50) by a group of 35 students in an examination : 0, 5, 6, 7, 10, 12, 14, 15, 20, 22, 25, 26, 27, 8, 11, 17, 3, 6, 9, 17, 19, 21, 22, 29, 31, 35,37, 40, 42, 45, 49, 4, 50, 16 and 20.: What is the range of the data ?

The following graph represents the ages of 25 teachers of a school : From the bars of this histogram, we can answer the following questions : How many teachers are of age less than 35 years ?

The following graph represents the ages of 25 teachers of a school : From the bars of this histogram, we can answer the following questions : How many teachers are of age 45 years or more but less than 50 years ?