The following is the distribution of weights (in kg) of 52 persons: Weight in kg, Persons 30-40 40-50 50-60 60-70 70-80, 10 15 17 6 4 What is the lower limit of class 50-60? Find the class marks of the classes 40-50, 50-60 What is the class size?

The following is the distribution of weights (in kg) of 50 persons: Weight (in kg) 50-55 55-60 60-65 65-70 70-75 75-80 80-85 85-90 No. of Person 12 8 5 4 5 7 6 3 Draw a histogram for the above data.

Find the mode of the following distribution: (i) Class-interval: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 Frequency: 5 8 7 12 28 20 10 10

If the mean of the following distribution is 54, find the value of p : Class: 0-20 20-40 40-60 60-80 80-100 Frequency: 7 p 10 9 13

Find the actual lower class limits , upper class limits and mid values of the classes : 10 -19 , 20 - 29 , 30 - 39 , and 40 - 49

The mean of the following frequency distribution is 50. Find the value of pdot Classes 0-20 20-40 40-60 60-80 80-100 Frequency 17 28 32 p 19

Following frequency distribution given the weights of 38 students of a class: Weight in Kg: 31-35 36-40, 41-45, 46-50, 51-55, 56-60 61-65, 66-70 71-75 No. of students 9 5 14 3 1 2 2 1 1 Find the probability that weight of a student in the class is: (i)at most 60 kg (ii)at least 36 kg (iii)not more than 50kg. Also define two events in this context, one having probability 0 and the other having probability 1.

The distribution below gives the weight of 30 students in a class. Find the median weight of students: Weight (in kg): 40-45 45-50 50-55 55-60 60-65 65-70 70-75 No. of students: 2 3 8 6 6 3 2

The following are weights (in kg) of 50 children taken at the time of birth: Make an inclusive form grouped frequency distribution table with 0.3 kg as the width of ' each class. Also, find the true class limits of each class.

The following are some particulars of the distribution of weights of boys and girls in a class: Boys Girls Number 100 50 Mean 60kg 45kg Variance 9 4 Which of the distributions is more variable?

The following are some particulars of the distribution of weights of boys and girls in a class: Boys Girls Number 100 50 Mean 60kg 45kg Variance 9 4 Which of the distributions is more variable?