Answer the following : Following data relates to the distribution of weights of 100 boys and 80 girls in a school
Which of the two is more variable?

Answer the following : Find the range of the following data.

Answer the following : Who implements the laws related to pollution ?

Answer the following : Write a short note on : Weight

Answer the following : Calculate S.D. from following data

Answer the following : Are force and pressure related to each other ?

Answer the following : The means ans S.D. of weights and heights of 100 students of a school are as follows. Which shows more variability, weights or heights?

Answer the following : Compute the variance and S.D. for the following data

Answer the following questions: Define the following terms related to spherical mirrors: Pole

Which of the following data is not primary?

Answer the following : Calculate co-efficient of variation for the data given below: