UPSKILL MATH PLUS
Learn Mathematics through our AI based learning portal with the support of our Academic Experts!
Learn moreThe number of people with different age groups visiting the exhibition is given below:
Age | Number of people |
Less than 10 | 10 |
Less than 20 | 31 |
Less than 30 | 68 |
Less than 40 | 85 |
Less than 50 | 102 |
1. The median class is
2. The modal class is
3. The mean of the upper limits of the modal and median class is .
4. The sum of the lower limits of the median and modal class is .
5. The abscissa of the point of intersection of the less than type and of the more than type cumulative frequency curves of a grouped data gives its .