This is part of our collection of Short Problems.
You may also be interested in our longer problems on Statistics - Stage 3.
Printable worksheets containing selections of these problems are available here
problem
Ice cream pie
The pie chart shows the different types of ice creams on sale. How many chocolate ice creams were sold?
problem
Kate's date
When Kate ate a giant date, the average weight of the dates decreased. What was the weight of the date that Kate ate?
problem
Balancing the books
How many visitors does a tourist attraction need next week in order to break even?
problem
Mean square
Can you fill this square so that the number in the middle of each line is the mean of the two numbers on either side of it?
problem
Average temperature
The average temperature of six cities is 5$^\circ$C. What is the average temperature when two cities are added?
problem
Bat wings
Two students collected some data on the wingspan of bats, but each lost a measurement. Can you find the missing information?
problem
The mean problem
Can you work out the four unknown numbers from the clues about their means?
problem
Rendezvous
In which town should five friends meet, in order to keep the total travelling distance as small as possible?
problem
Sevens
What is the largest number Sophie can use to have seven positive integers with a mean of 7?
problem
Committees
Every member of the club is a member of two committees. How many members are there in the club?
problem
Number of arms
What is the probability that the next person you meet has an above average number of arms?
problem
Any means possible
Can you find a way to break one of these rods so that one of the pieces is equal to the mean of the other two?
problem
Grandpa's rock cakes
Grandpa made a super-heavy rock cake. Five people have guessed the weight of the cake. Can you work out the weight of his cake?