Number of students working in four different industries for internship in five different years are as follows:
Q. Total number of boys working in Reliance over all the years together was approximately what percentage of total number of interns working in the year 2017?

Q. Number of students working in four different industries for internship in five different years are as follows:
Q. What was the total number of boys working in Vodafone in the year 2017, boys working in Idea in the year 2015 and girls working in Airtel in the 2016 together?

Q. Number of students working in four different industries for internship in five different years are as follows:
Q. What was the average number of girls working in all the companies together in the year 2014?

Q. Number of students working in four different industries for internship in five different years are as follows:
Q. What was the respective ratio between the number of boys in Airtel in the year 2015, number of girls in Vodafone in the year 2016 and the number of boys in Idea in the year 2015?

Q. Number of students working in four different industries for internship in five different years are as follows:
Q. If 20 percent of boys and 30 percent of girls in Idea in the year 2014 were Engineers, then what was the total number of Engineering interns in that company in that year?

Q. From the following frequency distribution, prepare the 'More Then Ogive'.

Score	Number of candidates
400-450	20
450-500	35
500-550	40
550-600	32
600-650	24
650-700	27
700-750	18
750-800	24
Total	230

Also find the median.