Question: david picks a card at random from a deck containing...
Question details
David picks a card at random from a deck containing 12 red cards, 10 yellow cards, 5 blue cards and 8 green cards. What is the probability that he selects a red card or a greencard?
As part of a data handling exercise a group of pupils were investigating attendance at afterschool clubs at their school. There are 256 pupils in the school. On a particular day, the attendance was as shown in the given table:
Attendance at afterschoolclubs 

Chess 
10 
Computing 
20 
Drama 
11 
Music 
12 
Sports 
12 
Total 
65 
Approximately what fraction of the pupils attended the sports club?