Question

Medical check-up was carried out for 35 students of a class and their weights were recorded as follows : Weight (in kg): 38-40, 40-42, 42-44, 44-46, 46-48, 48-50, 50-52 Number of Students: 3, 2, 4, 5, 14, 4, 3 Find the difference between the mean weight and the median weight.

Following table shows the absentees record of 40 students in an academic year :

If the mean of 2, 9, x+6, 2x+3, 5, 10, 5 is 7, then the value of x is :

The India Meteorological Department observes seasonal and annual rainfall every year in different sub-divisions of our country. It helps them to compare and analyse the results. The table below shows sub-divisions wise seasonal (monsoon) rainfall (in mm) in 2023. Rainfall (mm) | No. of Sub-divisions 200 – 400 | 3 400 – 600 | 4 600 – 800 | 7 800 – 1000 | 4 1000 – 1200 | 3 1200 – 1400 | 3 Based on the information given above, answer the following questions :