vvi questions for class XI

60 students of Section A of Class XI, obtained 40 mean marks in Statistics, 40 students of Section B obtained 35 mean marks in Statistics. Find out mean marks in Statistics for Class XI as a whole.

The bar graph below shows the percentage break-up of the number of student who visited various tourist spots on new Year evening. The table shows the total numbers of students om classes X,XI and XII . {:("Class","No. of students"),(X,420),(XI,480),(XII,400):} The number of students from class XI and XII together who visited Manali is what percent of the number of students from class X who visited Shimla, Ooty and Nainital together ? (approximate)

Chapterwise Important Question For Class 10 and 12 Boards

The bar graph below shows the percentage break-up of the number of student who visited various touris spots on new Year evening. The table shows the total numbers of students om classes X,XI and XII . {:("Class","No. of students"),(X,420),(XI,480),(XII,400):} What is the difference between the number of students who did not got to any tourist spotfrom class XI and that from class XII ?

Draw a histogram from the following data relating to the monthly pocket allowance of the students of Class XI of a school :

A sports team of 11 students is to be constituted, choosing at least 5 from class XI and at least 5 from class XII. If there are 25 students in each of these classes, in how many ways can the teams be constituted?

Let X={~ Rani,~ Geeta,~ Akbar}~ be~ the~ set~ of~ students of Class XI who are in school hockey team.Let Y={ Geeta,David,Ashok } be the set of students from Class XI who are in the school football team.Find X U Y and interpret the set