Data analysis and elements of combinatorics
Answers are for parents and teachers.
1
Find the mean of 5, 9, 7, 3, 6.
6
2
Find the range of −4, 3, 0, 9, −1.
13
3
Find the mode and the median of 3, 7, 7, 1, 8, 7, 3.
Mode 7; in order: 1, 3, 3, 7, 7, 7, 8, so the median is 7.
4
A class has 15 girls and 12 boys. How many pupils in all?
27
5
A cafe has 6 soups and 5 main dishes. In how many ways can one dish (a soup or a main dish) be chosen?
11