Question Number 01:

The Class-Marks in a frequency distribution of the weights of the students of a certain university are mentioned below:

77 84 91 98 105 112 119 126 133

Calculate:

(i) Class Size

(ii) Class Boundaries

(iii) Class Limits

Question Number 02:

Following Table 1 shows the frequency distribution for the number of minutes per week spent watching TV by junior high school students.

\fNon-smokers Moderate-Smokers Heavy-Smokers Hypertension (H) 45 63 80 No hypertension ( NH) 58 72 75