Advertisements
Advertisements
Question
Fill in the blank :
The class mark of class interval 22 - 29 is ...........
Advertisements
Solution
The class mark of class interval 22 - 29 is
The classmark is 22 - 29 = `( 22 + 29 )/2 = (51 )/2` = 25.5.
APPEARS IN
RELATED QUESTIONS
Find the actual lower and upper-class limits and also the class marks of the classes:
1.1 - 2.0, 2.1 -3.0 and 3.1 - 4.0.
Find the actual lower class limits, upper-class limits and the mid-values of the classes:
10 - 19, 20 - 29, 30 - 39 and 40 - 49.
Fill in the blank :
The range of data 7, 13, 6, 25, 18, 20, 16 is ............
Fill in the blank:
The upper-class limit of 24-30 is ……..
Fill in the blank:
The upper limit of 5-12.5 is ………
Fill in the blank:
If the upper and the lower limits of a class interval are 16 and 10; the class-interval is ……..
Fill in the blank:
If the lower and the upper limits of a class interval are 7.5 and 12.5; the class interval is ……..
Find the class boundaries and class marks of the following classes:
55 - 59, 60 - 64, 65 - 69, 70 - 74, 75 - 79, 80 - 84, 85 - 89, 90 - 94 and 95 - 99.
The number of goals scored by Arsenal Football Club in the English Premier League in the season 2007 were:
1, 2, 1, 3, 2, 5, 1, 6, 4, 4, 2, 3, 5, 6, 4, 2, 2, 3, 4, 1, 0, 5, 0, 5, 3, 2, 3, 4, 4, 1, 1, 2, 4, 3. 1. 4
Arrange these data in a distance frequency distribution table and answer the following:
(i) What is the range of the number of goals scored by AFC?
(ii) How many times did AFC score 3 or more than 3 goals?
(iii) Which variatie has the highest frequency?
The class marks of a frequency distribution are: 15, 25, 35, 45, 55, 65 and 75. Determine the class limits.
