What is the smallest possible range that these 4 integers could have?
Which driving test centre has the highest pass rate?
If each number in this list is the average of the two numbers before it, what is the value of a?
The mean of three numbers x, y and z is x. What is the mean of y and z?
From the mean of 64 numbers, and the mean of the first 36 of these numbers, can you work out the mean of the last 28 numbers?
Can you match the samples to the populations?
If some of the audience fell asleep for some of this talk, what was the average proportion of the talk that people heard?
When a jewel worth £5000 is transferred from one box to another, the average value of the jewels in both boxes increases. What is the total value of all the jewels?
Find the value of $m$ from these statements about a group of numbers
What do these statistics about family size mean?
When Helen moved her favourite pony from one stable to another, the average value of the horses in each stable increased by £10000. What is the total value of all the ponies?
The median of a set of five positive integers is one more than the mode and one less than the mean. Can you find the largest range possible?