Averages

Given a probability density function find the mean, median and mode of the distribution.

Start with two numbers and generate a sequence where the next number is the mean of the last two numbers...

Can you work out the average speed of the van?

Given the mean and standard deviation of a set of marks, what is the greatest number of candidates who could have scored 100%?

Minnie trained more for the London Marathon this year, so her speed increased. By what percentage did her time decrease?

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?

How many visitors does a tourist attraction need next week in order to break even?

When Kate ate a giant date, the average weight of the dates decreased. What was the weight of the date that Kate ate?

Kyle and his teacher disagree about his test score - who is right?

Find the value of $m$ from these statements about a group of numbers