A cumulative frequency distribution is given below. Convert this into a frequency distribution table. Marks Below 45 Below 60 Below 75 Below 90 Below 105 Below 120 No. of Students 0 8 23 48 85 116

Find the frequency of the waves given below.

Given below are the cumulative frequencies showing the weights of 685 students of a school. Prepare a frequency distribution table. Weight (in kg), No. of students Below 25 Below 30 Below 35 Below 40 Below 45 Below 50 Below 55 Below 60 Below 65 Below 70, 0 24 78 183 294 408 543 621 674 685

For the system given below, find the angular frequency of oscillation?

Complexes given below show:

Complexes given below show:

Find the mean marks of the students from the following cumulative frequency distribution: Marks: Below Below Below Below Below Below Below Below Below Below 10 20 30 40 50 60 70 80 90 100 No. of Students 5 9 17 29 45 60 70 78 83 85

Calculate the mean of the distribution given below using the short cut method.

Complete the reactions given below:

The structure given below is known as

The product of the reaction given below is