The following is the distribution of weights (in kg) of 50 persons: Weight: 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.

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.

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 table gives the weekly wages of workers in a factory. Weekly wages(Rs) 50-55 55-60 60-65 65-70 70-75 75-80 80-85 85-90 No. of workers 5 20 10 10 9 6 12 18 Calculate the mean, by using Short Cut Method.

The following table gives production yield per hectare of wheat of 100 farms of a village: Production yield 50-55 55-60 60-65 65-70 70-75 75-80 in kg per hectare: No. of farms: 2 8 12 24 38 16 Draw ‘less than’ ogive and ‘more than’ ogive.

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.

Calculate the mean and standard deviation for the following distribution: Marks:, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80, 80-90 No. of students:, 3, 6, 13, 15, 14, 5, 4

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

Calculate the mean and standard deviation for the following data: Wages upto (into Rs.), 15, 30, 45, 60, 75, 90, 105, 120 No. of workers, 12, 30, 65, 107, 157, 202, 222, 230

Find the mean deviation from the mean of the following data: Classes:, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80 frequency, 2, 3, 8, 14, 8, 3, 2

Find the mean deviation from the mean of the following data: Classes:, 10-20, 20-30, 30-40, 40-50, 50-60, 60-70, 70-80 frequency, 2, 3, 8, 14, 8, 3, 2