Find the size of the class `(a-b)-(a + b)`

Class mid-values of a frequency distribution of marks in economics of a group of students in Class XI are given as 25,32,39,46,53 and 60. Find the size of the class interval and class limits.

If the lower boundary of the class is 25 and the size of the class is 9 , then the upper boundary of the same class "_______" .

Size of the class 150-175 is

Write the class size of the class 18-26 in a continuous series.

In a frequency distribution with classes 0-10, 10-20 etc., the size of the class intervals is 10. The lower limit of fourth class is

The class size of the class interval 60 - 68 is 8.

Use the table given below to find : (a) The actual class limits of the fourth class. (b) The class boundaries of the sixth class. (c) The class mark of the third class. (d) The upper and lower limits of the fifth class. (e) The size of the third class. {:("Class interval","Frequency"),(30-34,7),(35-39,10),(40-44,12),(45-49,13),(50-54,8),(55-59,4):}

In an Art class, the teacher gives 3 pencils to each student and has 5 pencils left over. a. Find the rule for the number of pencils the teacher had at the beginning of the class. b. If the number of students in the class is 12, find the number of pencils the teacher had at the beginning of the class.

A class interval of data has 15 as the lower limit and 25 as the size . Then the class mark is "_______" .

Use the given table to find. (a) The actual class limits of the fourth class. (b) The class boundries of the sixth class. (c) The class mark of the third class. (d) The upper and lower limits of the third class. (e) The size of the third class