vvi questions for class xi

Chapterwise Important Question For Class 10 and 12 Boards

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)

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):} If the ratio of girls and boys, who went to Manali from class X, was 7:8 , then what percent of the total number of students from class X who went to a turist spot is the number of girls who went to Manali ? (approximate)

On the event of new year each student of class XI sends cards to his classmates. If there are 40 students in the class number of cards exchanged during the process is

The following are the marks obtained by 30 students of Class XI in Statistics. Prepare a frequency distribution by taking a class interval of 5 on exclusive basis.

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 ?